Regression: assert and crash on Connecting empty reroute node to multi socket #101705

System Information
Operating system: Windows-10-10.0.19043-SP0 64 Bits
Graphics card: NVIDIA GeForce GTX 1060 6GB/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 496.49

Blender Version
Broken: version: 3.4.0 Alpha, branch: master, commit date: 2022-09-30 22:40, hash: 206dead860
Worked: version: 3.4.0 Alpha, branch: master, commit date: 2022-09-29 01:57, hash: e2df195844

Caused by: db0ef8b00d

Short description of error
If you plug a reroute node into a multisocket with no data entered into it, blender will crash.

Stack trace:
blender.exe         :0x00007FF7711E3DC0  bli_windows_system_backtrace_stack_thread F:\Blender_build\first\blender\source\blender\blenlib\intern\system_win32.c:219
blender.exe         :0x00007FF7711E2EC0  BLI_windows_system_backtrace_stack F:\Blender_build\first\blender\source\blender\blenlib\intern\system_win32.c:306
blender.exe         :0x00007FF7711E28C0  BLI_system_backtrace F:\Blender_build\first\blender\source\blender\blenlib\intern\system_win32.c:372
blender.exe         :0x00007FF7711E7F80  _BLI_assert_print_backtrace F:\Blender_build\first\blender\source\blender\blenlib\intern\BLI_assert.c:36
blender.exe         :0x00007FF770E186D0  <lambda_96a7f9c242f31bac247b4262dc0c3ff6>::operator() F:\Blender_build\first\blender\source\blender\functions\intern\lazy_function_graph_executor.cc:654
blender.exe         :0x00007FF770E0FBB0  blender::FunctionRef<void __cdecl(blender::fn::lazy_function::LockedNode &)>::callback_fn<<lambda_9 F:\Blender_build\first\blender\source\blender\blenlib\BLI_function_ref.hh:95
blender.exe         :0x00007FF770E19950  blender::FunctionRef<void __cdecl(blender::fn::lazy_function::LockedNode &)>::operator() F:\Blender_build\first\blender\source\blender\blenlib\BLI_function_ref.hh:132
blender.exe         :0x00007FF770E248A0  blender::fn::lazy_function::Executor::with_locked_node F:\Blender_build\first\blender\source\blender\functions\intern\lazy_function_graph_executor.cc:584
blender.exe         :0x00007FF770E22480  blender::fn::lazy_function::Executor::run_node_task F:\Blender_build\first\blender\source\blender\functions\intern\lazy_function_graph_executor.cc:693
blender.exe         :0x00007FF770E22700  blender::fn::lazy_function::Executor::run_task F:\Blender_build\first\blender\source\blender\functions\intern\lazy_function_graph_executor.cc:612
blender.exe         :0x00007FF770E1C5E0  blender::fn::lazy_function::Executor::execute F:\Blender_build\first\blender\source\blender\functions\intern\lazy_function_graph_executor.cc:317
blender.exe         :0x00007FF770E1C850  blender::fn::lazy_function::GraphExecutor::execute_impl F:\Blender_build\first\blender\source\blender\functions\intern\lazy_function_graph_executor.cc:1185
blender.exe         :0x00007FF76F028AB0  blender::fn::lazy_function::LazyFunction::execute F:\Blender_build\first\blender\source\blender\functions\FN_lazy_function.hh:327
blender.exe         :0x00007FF76F025790  compute_geometry F:\Blender_build\first\blender\source\blender\modifiers\intern\MOD_nodes.cc:1184
blender.exe         :0x00007FF76F02E960  modifyGeometry F:\Blender_build\first\blender\source\blender\modifiers\intern\MOD_nodes.cc:1305
blender.exe         :0x00007FF76F00BA50  modifyGeometrySet F:\Blender_build\first\blender\source\blender\modifiers\intern\MOD_nodes.cc:1343
blender.exe         :0x00007FF76E5ABC50  modifier_modify_mesh_and_geometry_set F:\Blender_build\first\blender\source\blender\blenkernel\intern\DerivedMesh.cc:629
blender.exe         :0x00007FF76E5A9730  mesh_calc_modifiers F:\Blender_build\first\blender\source\blender\blenkernel\intern\DerivedMesh.cc:972
blender.exe         :0x00007FF76E5A9150  mesh_build_data F:\Blender_build\first\blender\source\blender\blenkernel\intern\DerivedMesh.cc:1585
blender.exe         :0x00007FF76E5AF0A0  makeDerivedMesh F:\Blender_build\first\blender\source\blender\blenkernel\intern\DerivedMesh.cc:1744
blender.exe         :0x00007FF76E5F6DA0  BKE_object_handle_data_update F:\Blender_build\first\blender\source\blender\blenkernel\intern\object_update.cc:165
blender.exe         :0x00007FF76E5F6C50  BKE_object_eval_uber_data F:\Blender_build\first\blender\source\blender\blenkernel\intern\object_update.cc:329
blender.exe         :0x00007FF76ED41CF0  <lambda_dfec21a1fb9cbd0068712bf807655c50>::operator() F:\Blender_build\first\blender\source\blender\depsgraph\intern\builder\deg_builder_nodes.cc:1513
blender.exe         :0x00007FF76ED3C930  std::invoke<<lambda_dfec21a1fb9cbd0068712bf807655c50> &,Depsgraph *> C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.30.30705\include\type_traits:1503
blender.exe         :0x00007FF76ED36100  std::_Invoker_ret<void,1>::_Call<<lambda_dfec21a1fb9cbd0068712bf807655c50> &,Depsgraph *> C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.30.30705\include\functional:652
blender.exe         :0x00007FF76ED45410  std::_Func_impl_no_alloc<<lambda_dfec21a1fb9cbd0068712bf807655c50>,void,Depsgraph *>::_Do_call C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.30.30705\include\functional:823
blender.exe         :0x00007FF76ED097D0  std::_Func_class<void,Depsgraph *>::operator() C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.30.30705\include\functional:870
blender.exe         :0x00007FF76ED0A2F0  blender::deg::`anonymous namespace'::evaluate_node F:\Blender_build\first\blender\source\blender\depsgraph\intern\eval\deg_eval.cc:114
blender.exe         :0x00007FF76ED09F60  blender::deg::`anonymous namespace'::deg_task_run_func F:\Blender_build\first\blender\source\blender\depsgraph\intern\eval\deg_eval.cc:128
blender.exe         :0x00007FF771283950  Task::operator() F:\Blender_build\first\blender\source\blender\blenlib\intern\task_pool.cc:165
blender.exe         :0x00007FF771284160  tbb_task_pool_run F:\Blender_build\first\blender\source\blender\blenlib\intern\task_pool.cc:215
blender.exe         :0x00007FF7712847A0  BLI_task_pool_push F:\Blender_build\first\blender\source\blender\blenlib\intern\task_pool.cc:472
blender.exe         :0x00007FF76ED0A8A0  blender::deg::`anonymous namespace'::schedule_node_to_pool F:\Blender_build\first\blender\source\blender\depsgraph\intern\eval\deg_eval.cc:64
blender.exe         :0x00007FF76ED092D0  blender::deg::`anonymous namespace'::schedule_node<void __cdecl(blender::deg::OperationNode *,int,T F:\Blender_build\first\blender\source\blender\depsgraph\intern\eval\deg_eval.cc:287
blender.exe         :0x00007FF76ED08DB0  blender::deg::`anonymous namespace'::schedule_children<void __cdecl(blender::deg::OperationNode *,i F:\Blender_build\first\blender\source\blender\depsgraph\intern\eval\deg_eval.cc:304
blender.exe         :0x00007FF76ED092D0  blender::deg::`anonymous namespace'::schedule_node<void __cdecl(blender::deg::OperationNode *,int,T F:\Blender_build\first\blender\source\blender\depsgraph\intern\eval\deg_eval.cc:281
blender.exe         :0x00007FF76ED08DB0  blender::deg::`anonymous namespace'::schedule_children<void __cdecl(blender::deg::OperationNode *,i F:\Blender_build\first\blender\source\blender\depsgraph\intern\eval\deg_eval.cc:304
blender.exe         :0x00007FF76ED092D0  blender::deg::`anonymous namespace'::schedule_node<void __cdecl(blender::deg::OperationNode *,int,T F:\Blender_build\first\blender\source\blender\depsgraph\intern\eval\deg_eval.cc:281
blender.exe         :0x00007FF76ED08DB0  blender::deg::`anonymous namespace'::schedule_children<void __cdecl(blender::deg::OperationNode *,i F:\Blender_build\first\blender\source\blender\depsgraph\intern\eval\deg_eval.cc:304
blender.exe         :0x00007FF76ED092D0  blender::deg::`anonymous namespace'::schedule_node<void __cdecl(blender::deg::OperationNode *,int,T F:\Blender_build\first\blender\source\blender\depsgraph\intern\eval\deg_eval.cc:281
blender.exe         :0x00007FF76ED08DB0  blender::deg::`anonymous namespace'::schedule_children<void __cdecl(blender::deg::OperationNode *,i F:\Blender_build\first\blender\source\blender\depsgraph\intern\eval\deg_eval.cc:304
blender.exe         :0x00007FF76ED092D0  blender::deg::`anonymous namespace'::schedule_node<void __cdecl(blender::deg::OperationNode *,int,T F:\Blender_build\first\blender\source\blender\depsgraph\intern\eval\deg_eval.cc:281
blender.exe         :0x00007FF76ED09110  blender::deg::`anonymous namespace'::schedule_graph<void __cdecl(blender::deg::OperationNode *,int, F:\Blender_build\first\blender\source\blender\depsgraph\intern\eval\deg_eval.cc:293
blender.exe         :0x00007FF76ED0A250  blender::deg::`anonymous namespace'::evaluate_graph_threaded_stage F:\Blender_build\first\blender\source\blender\depsgraph\intern\eval\deg_eval.cc:339
blender.exe         :0x00007FF76ED09CC0  blender::deg::deg_evaluate_on_refresh F:\Blender_build\first\blender\source\blender\depsgraph\intern\eval\deg_eval.cc:459
blender.exe         :0x00007FF76ECB5C10  deg_flush_updates_and_refresh F:\Blender_build\first\blender\source\blender\depsgraph\intern\depsgraph_eval.cc:45
blender.exe         :0x00007FF76ECB5D70  DEG_evaluate_on_refresh F:\Blender_build\first\blender\source\blender\depsgraph\intern\depsgraph_eval.cc:69
blender.exe         :0x00007FF76E098BD0  scene_graph_update_tagged F:\Blender_build\first\blender\source\blender\blenkernel\intern\scene.cc:2680
blender.exe         :0x00007FF76E09C900  BKE_scene_graph_update_tagged F:\Blender_build\first\blender\source\blender\blenkernel\intern\scene.cc:2728
blender.exe         :0x00007FF76DD58D60  wm_event_do_depsgraph F:\Blender_build\first\blender\source\blender\windowmanager\intern\wm_event_system.cc:446
blender.exe         :0x00007FF76DD5AFD0  wm_event_do_refresh_wm_and_depsgraph F:\Blender_build\first\blender\source\blender\windowmanager\intern\wm_event_system.cc:469
blender.exe         :0x00007FF76DD5A2D0  wm_event_do_notifiers F:\Blender_build\first\blender\source\blender\windowmanager\intern\wm_event_system.cc:692
blender.exe         :0x00007FF76DD21ED0  WM_main F:\Blender_build\first\blender\source\blender\windowmanager\intern\wm.c:646
blender.exe         :0x00007FF76DD19C30  main F:\Blender_build\first\blender\source\creator\creator.c:579
blender.exe         :0x00007FF77162B830  invoke_main d:\a01\_work\20\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:79
blender.exe         :0x00007FF77162B5E0  __scrt_common_main_seh d:\a01\_work\20\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:288
blender.exe         :0x00007FF77162B5C0  __scrt_common_main d:\a01\_work\20\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:331
blender.exe         :0x00007FF77162B8F0  mainCRTStartup d:\a01\_work\20\s\src\vctools\crt\vcstartup\src\startup\exe_main.cpp:17
KERNEL32.DLL        :0x00007FFA76217020  BaseThreadInitThunk
ntdll.dll           :0x00007FFA76382630  RtlUserThreadStart


Threads:
Thread : 000003ac
ntdll.dll           :0x00007FFA763D0980  ZwWaitForWorkViaWorkerFactory
ntdll.dll           :0x00007FFA76382680  TpReleaseCleanupGroupMembers
KERNEL32.DLL        :0x00007FFA76217020  BaseThreadInitThunk
ntdll.dll           :0x00007FFA76382630  RtlUserThreadStart


Thread : 00002be0
ntdll.dll           :0x00007FFA763D0980  ZwWaitForWorkViaWorkerFactory
ntdll.dll           :0x00007FFA76382680  TpReleaseCleanupGroupMembers
KERNEL32.DLL        :0x00007FFA76217020  BaseThreadInitThunk
ntdll.dll           :0x00007FFA76382630  RtlUserThreadStart


Thread : 00000e60
ntdll.dll           :0x00007FFA763D0980  ZwWaitForWorkViaWorkerFactory
ntdll.dll           :0x00007FFA76382680  TpReleaseCleanupGroupMembers
KERNEL32.DLL        :0x00007FFA76217020  BaseThreadInitThunk
ntdll.dll           :0x00007FFA76382630  RtlUserThreadStart


Thread : 0000324c
ntdll.dll           :0x00007FFA763CCFB0  NtWaitForSingleObject
KERNELBASE.dll      :0x00007FFA73DB1A40  WaitForSingleObjectEx
nvoglv64.dll        :0x00007FFA1BC71C00  DrvValidateVersion
nvoglv64.dll        :0x00007FFA1B9FF73C  Symbols not available


Thread : 0000429c
ntdll.dll           :0x00007FFA763CDA80  ZwWaitForMultipleObjects
KERNELBASE.dll      :0x00007FFA73DDCAD0  WaitForMultipleObjectsEx
KERNELBASE.dll      :0x00007FFA73DDCAB0  WaitForMultipleObjects
nvoglv64.dll        :0x00007FFA1BCA7770  DrvPresentBuffers
nvoglv64.dll        :0x00007FFA1BCA7770  DrvPresentBuffers
KERNEL32.DLL        :0x00007FFA76217020  BaseThreadInitThunk
ntdll.dll           :0x00007FFA76382630  RtlUserThreadStart


Thread : 00003550
win32u.dll          :0x00007FFA741AA0F0  NtUserMsgWaitForMultipleObjectsEx
USER32.dll          :0x00007FFA74B606F0  MsgWaitForMultipleObjectsEx
nvoglv64.dll        :0x00007FFA1BC71C00  DrvValidateVersion
KERNEL32.DLL        :0x00007FFA76217020  BaseThreadInitThunk
ntdll.dll           :0x00007FFA76382630  RtlUserThreadStart


Thread : 00002f18
ntdll.dll           :0x00007FFA763D0980  ZwWaitForWorkViaWorkerFactory
ntdll.dll           :0x00007FFA76382680  TpReleaseCleanupGroupMembers
KERNEL32.DLL        :0x00007FFA76217020  BaseThreadInitThunk
ntdll.dll           :0x00007FFA76382630  RtlUserThreadStart


Thread : 000006a0
ntdll.dll           :0x00007FFA763D0980  ZwWaitForWorkViaWorkerFactory
ntdll.dll           :0x00007FFA76382680  TpReleaseCleanupGroupMembers
KERNEL32.DLL        :0x00007FFA76217020  BaseThreadInitThunk
ntdll.dll           :0x00007FFA76382630  RtlUserThreadStart


Thread : 00003a7c
ntdll.dll           :0x00007FFA763CDA80  ZwWaitForMultipleObjects
KERNELBASE.dll      :0x00007FFA73DDCAD0  WaitForMultipleObjectsEx
combase.dll         :0x00007FFA7550A260  CoRevokeInitializeSpy
combase.dll         :0x00007FFA7550A260  CoRevokeInitializeSpy
combase.dll         :0x00007FFA7550A260  CoRevokeInitializeSpy
combase.dll         :0x00007FFA7550A260  CoRevokeInitializeSpy
KERNEL32.DLL        :0x00007FFA76217020  BaseThreadInitThunk
ntdll.dll           :0x00007FFA76382630  RtlUserThreadStart


Thread : 00003120
ntdll.dll           :0x00007FFA763CCFB0  NtWaitForSingleObject
KERNELBASE.dll      :0x00007FFA73DB1A40  WaitForSingleObjectEx
Wintab32.dll        :0x00007FFA6A072050  hn_wintab_OnTimeout
Wintab32.dll        :0x00007FFA6A072050  hn_wintab_OnTimeout
Wintab32.dll        :0x00007FFA6A072050  hn_wintab_OnTimeout
KERNEL32.DLL        :0x00007FFA76217020  BaseThreadInitThunk
ntdll.dll           :0x00007FFA76382630  RtlUserThreadStart


Thread : 0000092c
win32u.dll          :0x00007FFA741AA0F0  NtUserMsgWaitForMultipleObjectsEx
USER32.dll          :0x00007FFA74B606F0  MsgWaitForMultipleObjectsEx
directmanipulation.dll:0x00007FFA6095458B  Symbols not available


Loaded Modules :
0x00007FF76BE30000 3.4.0.0              blender.exe F:\Blender_build\first\ninja_lite_debug\source\creator\Debug\blender_private.pdb
0x00007FFA76330000 10.0.19041.1806      ntdll.dll
0x00007FFA76200000 10.0.19041.1806      KERNEL32.DLL
0x00007FFA73D90000 10.0.19041.1826      KERNELBASE.dll
0x00007FFA74390000 10.0.19041.1806      SHELL32.dll
0x00007FFA74060000 10.0.19041.789       msvcp_win.dll
0x00007FFA73C90000 10.0.19041.789       ucrtbase.dll
0x00007FFA74B40000 10.0.19041.1503      USER32.dll
0x00007FFA741A0000 10.0.19041.1826      win32u.dll
0x00007FFA75DF0000 10.0.19041.1620      GDI32.dll
0x00007FFA73B80000 10.0.19041.1706      gdi32full.dll
0x00007FFA74EE0000 10.0.19041.1682      ADVAPI32.dll
0x00007FFA64770000                      epoxy-0.dll
0x00007FFA75E20000 7.0.19041.546        msvcrt.dll
0x00007FFA388C0000 3.10.2150.1013       python310_d.dll
0x00007FFA75EC0000 10.0.19041.1586      sechost.dll
0x00007FFA64200000 14.30.30708.0        MSVCP140D.dll
0x00007FFA75BD0000 10.0.19041.1806      RPCRT4.dll
0x00007FFA6D510000 14.30.30708.0        VCRUNTIME140D.dll
0x00007FFA711A0000 14.30.30708.0        VCRUNTIME140_1D.dll
0x00007FFA74D90000 10.0.19041.1202      ole32.dll
0x00007FFA754D0000 10.0.19041.1741      combase.dll
0x00007FFA616F0000 6.10.19041.1110      COMCTL32.dll
0x00007FFA59F30000 10.0.19041.685       ucrtbased.dll
0x00007FFA75AE0000 10.0.19041.546       WS2_32.dll
0x00007FFA75470000 10.0.19041.1706      SHLWAPI.dll
0x00007FFA74CE0000 10.0.19041.1741      shcore.dll
0x00007FFA6ED30000 10.0.19041.546       VERSION.dll
0x00007FFA70980000 14.30.30708.0        VCRUNTIME140.dll
0x00007FFA74360000 10.0.19041.546       IMM32.dll
0x00007FFA62D10000 10.0.19041.867       dbghelp.dll
0x00007FFA717F0000 10.0.19041.746       dwmapi.dll
0x00007FFA71B00000 10.0.19041.1806      windows.storage.dll
0x00007FFA732D0000 10.0.19041.1806      Wldp.dll
0x00007FFA73960000 10.0.19041.844       profapi.dll
0x00007FFA70B20000 10.0.19041.1620      uxtheme.dll
0x00007FFA71820000 10.0.19041.546       kernel.appcore.dll
0x00007FFA741D0000 10.0.19041.1415      bcryptPrimitives.dll
0x00007FFA75830000 10.0.19041.1806      MSCTF.dll
0x00007FFA75D00000 10.0.19041.985       OLEAUT32.dll
0x00007FFA63F10000 10.0.19041.1806      OPENGL32.DLL
0x00007FFA6A0B0000 10.0.19041.1806      GLU32.dll
0x00007FFA75A30000 2001.12.10941.16384  clbcatq.dll
0x00007FFA6E560000 10.0.19041.1620      AppXDeploymentClient.dll
0x00007FFA1AF40000 30.0.14.9649         nvoglv64.dll
0x00007FFA74F90000 10.0.19041.1741      SETUPAPI.dll
0x00007FFA74260000 10.0.19041.1620      cfgmgr32.dll
0x00007FFA74170000 10.0.19041.1023      bcrypt.dll
0x00007FFA70210000 10.0.19041.546       WTSAPI32.dll
0x00007FFA73240000 10.0.19041.546       CRYPTBASE.DLL
0x00007FFA734E0000 10.0.19041.546       msasn1.dll
0x00007FFA6E480000 10.0.19041.906       cryptnet.dll
0x00007FFA73A20000 10.0.19041.1320      CRYPT32.dll
0x00007FFA6AF70000 10.0.19041.1566      drvstore.dll
0x00007FFA73710000 10.0.19041.1620      devobj.dll
0x00007FFA74100000 10.0.19041.1806      WINTRUST.dll
0x00007FFA727A0000 10.0.19041.546       ntmarta.dll
0x00007FFA6DE70000 10.0.19041.546       dxcore.dll
0x00007FFA73890000 10.0.19041.546       powrprof.dll
0x00007FFA73870000                      UMPDC.dll
0x00007FFA73810000 10.0.19041.546       WINSTA.dll
0x00007FFA63C20000 10.0.19041.1387      dataexchange.dll
0x00007FFA6F3D0000 10.0.19041.1741      d3d11.dll
0x00007FFA702F0000 10.0.19041.1741      dcomp.dll
0x00007FFA72400000 10.0.19041.1806      dxgi.dll
0x00007FFA6CE80000 10.0.19041.1806      twinapi.appcore.dll
0x00007FFA65F30000 10.0.19041.1806      textinputframework.dll
0x00007FFA71060000 10.0.19041.746       CoreMessaging.dll
0x00007FFA70D00000 10.0.19041.546       CoreUIComponents.dll
0x00007FFA705E0000 10.0.19041.1682      wintypes.dll
0x00007FFA66C60000 7.2.19041.746        Oleacc.dll
0x00007FFA6A070000 1.0.0.1              Wintab32.dll
0x00007FFA53C40000 10.0.19041.1023      explorerframe.dll
0x00007FFA60940000 10.0.19041.1566      directmanipulation.dll
0x00007FFA73470000 10.0.19041.546       CRYPTSP.dll
0x00007FFA72A50000 10.0.19041.1052      rsaenh.dll
BLI_assert failed: F:\Blender_build\first\blender\source\blender\functions\intern\lazy_function_graph_executor.cc:654, operator ()(), at 'default_value != nullptr'

Exact steps for others to reproduce the error

Create new geometry node modifier
Add Join Geometry / To Instances and connect to group input and output
Create new reroute node
Connect reroute to multi input socket

2022-10-09 04-39-29.mp4

**System Information** Operating system: Windows-10-10.0.19043-SP0 64 Bits Graphics card: NVIDIA GeForce GTX 1060 6GB/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 496.49 **Blender Version** Broken: version: 3.4.0 Alpha, branch: master, commit date: 2022-09-30 22:40, hash: `206dead860` Worked: version: 3.4.0 Alpha, branch: master, commit date: 2022-09-29 01:57, hash: `e2df195844` Caused by: db0ef8b00d3c **Short description of error** If you plug a reroute node into a multisocket with no data entered into it, blender will crash. ```lines=10 Stack trace: blender.exe :0x00007FF7711E3DC0 bli_windows_system_backtrace_stack_thread F:\Blender_build\first\blender\source\blender\blenlib\intern\system_win32.c:219 blender.exe :0x00007FF7711E2EC0 BLI_windows_system_backtrace_stack F:\Blender_build\first\blender\source\blender\blenlib\intern\system_win32.c:306 blender.exe :0x00007FF7711E28C0 BLI_system_backtrace F:\Blender_build\first\blender\source\blender\blenlib\intern\system_win32.c:372 blender.exe :0x00007FF7711E7F80 _BLI_assert_print_backtrace F:\Blender_build\first\blender\source\blender\blenlib\intern\BLI_assert.c:36 blender.exe :0x00007FF770E186D0 <lambda_96a7f9c242f31bac247b4262dc0c3ff6>::operator() F:\Blender_build\first\blender\source\blender\functions\intern\lazy_function_graph_executor.cc:654 blender.exe :0x00007FF770E0FBB0 blender::FunctionRef<void __cdecl(blender::fn::lazy_function::LockedNode &)>::callback_fn<<lambda_9 F:\Blender_build\first\blender\source\blender\blenlib\BLI_function_ref.hh:95 blender.exe :0x00007FF770E19950 blender::FunctionRef<void __cdecl(blender::fn::lazy_function::LockedNode &)>::operator() F:\Blender_build\first\blender\source\blender\blenlib\BLI_function_ref.hh:132 blender.exe :0x00007FF770E248A0 blender::fn::lazy_function::Executor::with_locked_node F:\Blender_build\first\blender\source\blender\functions\intern\lazy_function_graph_executor.cc:584 blender.exe :0x00007FF770E22480 blender::fn::lazy_function::Executor::run_node_task F:\Blender_build\first\blender\source\blender\functions\intern\lazy_function_graph_executor.cc:693 blender.exe :0x00007FF770E22700 blender::fn::lazy_function::Executor::run_task F:\Blender_build\first\blender\source\blender\functions\intern\lazy_function_graph_executor.cc:612 blender.exe :0x00007FF770E1C5E0 blender::fn::lazy_function::Executor::execute F:\Blender_build\first\blender\source\blender\functions\intern\lazy_function_graph_executor.cc:317 blender.exe :0x00007FF770E1C850 blender::fn::lazy_function::GraphExecutor::execute_impl F:\Blender_build\first\blender\source\blender\functions\intern\lazy_function_graph_executor.cc:1185 blender.exe :0x00007FF76F028AB0 blender::fn::lazy_function::LazyFunction::execute F:\Blender_build\first\blender\source\blender\functions\FN_lazy_function.hh:327 blender.exe :0x00007FF76F025790 compute_geometry F:\Blender_build\first\blender\source\blender\modifiers\intern\MOD_nodes.cc:1184 blender.exe :0x00007FF76F02E960 modifyGeometry F:\Blender_build\first\blender\source\blender\modifiers\intern\MOD_nodes.cc:1305 blender.exe :0x00007FF76F00BA50 modifyGeometrySet F:\Blender_build\first\blender\source\blender\modifiers\intern\MOD_nodes.cc:1343 blender.exe :0x00007FF76E5ABC50 modifier_modify_mesh_and_geometry_set F:\Blender_build\first\blender\source\blender\blenkernel\intern\DerivedMesh.cc:629 blender.exe :0x00007FF76E5A9730 mesh_calc_modifiers F:\Blender_build\first\blender\source\blender\blenkernel\intern\DerivedMesh.cc:972 blender.exe :0x00007FF76E5A9150 mesh_build_data F:\Blender_build\first\blender\source\blender\blenkernel\intern\DerivedMesh.cc:1585 blender.exe :0x00007FF76E5AF0A0 makeDerivedMesh F:\Blender_build\first\blender\source\blender\blenkernel\intern\DerivedMesh.cc:1744 blender.exe :0x00007FF76E5F6DA0 BKE_object_handle_data_update F:\Blender_build\first\blender\source\blender\blenkernel\intern\object_update.cc:165 blender.exe :0x00007FF76E5F6C50 BKE_object_eval_uber_data F:\Blender_build\first\blender\source\blender\blenkernel\intern\object_update.cc:329 blender.exe :0x00007FF76ED41CF0 <lambda_dfec21a1fb9cbd0068712bf807655c50>::operator() F:\Blender_build\first\blender\source\blender\depsgraph\intern\builder\deg_builder_nodes.cc:1513 blender.exe :0x00007FF76ED3C930 std::invoke<<lambda_dfec21a1fb9cbd0068712bf807655c50> &,Depsgraph *> C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.30.30705\include\type_traits:1503 blender.exe :0x00007FF76ED36100 std::_Invoker_ret<void,1>::_Call<<lambda_dfec21a1fb9cbd0068712bf807655c50> &,Depsgraph *> C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.30.30705\include\functional:652 blender.exe :0x00007FF76ED45410 std::_Func_impl_no_alloc<<lambda_dfec21a1fb9cbd0068712bf807655c50>,void,Depsgraph *>::_Do_call C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.30.30705\include\functional:823 blender.exe :0x00007FF76ED097D0 std::_Func_class<void,Depsgraph *>::operator() C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.30.30705\include\functional:870 blender.exe :0x00007FF76ED0A2F0 blender::deg::`anonymous namespace'::evaluate_node F:\Blender_build\first\blender\source\blender\depsgraph\intern\eval\deg_eval.cc:114 blender.exe :0x00007FF76ED09F60 blender::deg::`anonymous namespace'::deg_task_run_func F:\Blender_build\first\blender\source\blender\depsgraph\intern\eval\deg_eval.cc:128 blender.exe :0x00007FF771283950 Task::operator() F:\Blender_build\first\blender\source\blender\blenlib\intern\task_pool.cc:165 blender.exe :0x00007FF771284160 tbb_task_pool_run F:\Blender_build\first\blender\source\blender\blenlib\intern\task_pool.cc:215 blender.exe :0x00007FF7712847A0 BLI_task_pool_push F:\Blender_build\first\blender\source\blender\blenlib\intern\task_pool.cc:472 blender.exe :0x00007FF76ED0A8A0 blender::deg::`anonymous namespace'::schedule_node_to_pool F:\Blender_build\first\blender\source\blender\depsgraph\intern\eval\deg_eval.cc:64 blender.exe :0x00007FF76ED092D0 blender::deg::`anonymous namespace'::schedule_node<void __cdecl(blender::deg::OperationNode *,int,T F:\Blender_build\first\blender\source\blender\depsgraph\intern\eval\deg_eval.cc:287 blender.exe :0x00007FF76ED08DB0 blender::deg::`anonymous namespace'::schedule_children<void __cdecl(blender::deg::OperationNode *,i F:\Blender_build\first\blender\source\blender\depsgraph\intern\eval\deg_eval.cc:304 blender.exe :0x00007FF76ED092D0 blender::deg::`anonymous namespace'::schedule_node<void __cdecl(blender::deg::OperationNode *,int,T F:\Blender_build\first\blender\source\blender\depsgraph\intern\eval\deg_eval.cc:281 blender.exe :0x00007FF76ED08DB0 blender::deg::`anonymous namespace'::schedule_children<void __cdecl(blender::deg::OperationNode *,i F:\Blender_build\first\blender\source\blender\depsgraph\intern\eval\deg_eval.cc:304 blender.exe :0x00007FF76ED092D0 blender::deg::`anonymous namespace'::schedule_node<void __cdecl(blender::deg::OperationNode *,int,T F:\Blender_build\first\blender\source\blender\depsgraph\intern\eval\deg_eval.cc:281 blender.exe :0x00007FF76ED08DB0 blender::deg::`anonymous namespace'::schedule_children<void __cdecl(blender::deg::OperationNode *,i F:\Blender_build\first\blender\source\blender\depsgraph\intern\eval\deg_eval.cc:304 blender.exe :0x00007FF76ED092D0 blender::deg::`anonymous namespace'::schedule_node<void __cdecl(blender::deg::OperationNode *,int,T F:\Blender_build\first\blender\source\blender\depsgraph\intern\eval\deg_eval.cc:281 blender.exe :0x00007FF76ED08DB0 blender::deg::`anonymous namespace'::schedule_children<void __cdecl(blender::deg::OperationNode *,i F:\Blender_build\first\blender\source\blender\depsgraph\intern\eval\deg_eval.cc:304 blender.exe :0x00007FF76ED092D0 blender::deg::`anonymous namespace'::schedule_node<void __cdecl(blender::deg::OperationNode *,int,T F:\Blender_build\first\blender\source\blender\depsgraph\intern\eval\deg_eval.cc:281 blender.exe :0x00007FF76ED09110 blender::deg::`anonymous namespace'::schedule_graph<void __cdecl(blender::deg::OperationNode *,int, F:\Blender_build\first\blender\source\blender\depsgraph\intern\eval\deg_eval.cc:293 blender.exe :0x00007FF76ED0A250 blender::deg::`anonymous namespace'::evaluate_graph_threaded_stage F:\Blender_build\first\blender\source\blender\depsgraph\intern\eval\deg_eval.cc:339 blender.exe :0x00007FF76ED09CC0 blender::deg::deg_evaluate_on_refresh F:\Blender_build\first\blender\source\blender\depsgraph\intern\eval\deg_eval.cc:459 blender.exe :0x00007FF76ECB5C10 deg_flush_updates_and_refresh F:\Blender_build\first\blender\source\blender\depsgraph\intern\depsgraph_eval.cc:45 blender.exe :0x00007FF76ECB5D70 DEG_evaluate_on_refresh F:\Blender_build\first\blender\source\blender\depsgraph\intern\depsgraph_eval.cc:69 blender.exe :0x00007FF76E098BD0 scene_graph_update_tagged F:\Blender_build\first\blender\source\blender\blenkernel\intern\scene.cc:2680 blender.exe :0x00007FF76E09C900 BKE_scene_graph_update_tagged F:\Blender_build\first\blender\source\blender\blenkernel\intern\scene.cc:2728 blender.exe :0x00007FF76DD58D60 wm_event_do_depsgraph F:\Blender_build\first\blender\source\blender\windowmanager\intern\wm_event_system.cc:446 blender.exe :0x00007FF76DD5AFD0 wm_event_do_refresh_wm_and_depsgraph F:\Blender_build\first\blender\source\blender\windowmanager\intern\wm_event_system.cc:469 blender.exe :0x00007FF76DD5A2D0 wm_event_do_notifiers F:\Blender_build\first\blender\source\blender\windowmanager\intern\wm_event_system.cc:692 blender.exe :0x00007FF76DD21ED0 WM_main F:\Blender_build\first\blender\source\blender\windowmanager\intern\wm.c:646 blender.exe :0x00007FF76DD19C30 main F:\Blender_build\first\blender\source\creator\creator.c:579 blender.exe :0x00007FF77162B830 invoke_main d:\a01\_work\20\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:79 blender.exe :0x00007FF77162B5E0 __scrt_common_main_seh d:\a01\_work\20\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:288 blender.exe :0x00007FF77162B5C0 __scrt_common_main d:\a01\_work\20\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:331 blender.exe :0x00007FF77162B8F0 mainCRTStartup d:\a01\_work\20\s\src\vctools\crt\vcstartup\src\startup\exe_main.cpp:17 KERNEL32.DLL :0x00007FFA76217020 BaseThreadInitThunk ntdll.dll :0x00007FFA76382630 RtlUserThreadStart Threads: Thread : 000003ac ntdll.dll :0x00007FFA763D0980 ZwWaitForWorkViaWorkerFactory ntdll.dll :0x00007FFA76382680 TpReleaseCleanupGroupMembers KERNEL32.DLL :0x00007FFA76217020 BaseThreadInitThunk ntdll.dll :0x00007FFA76382630 RtlUserThreadStart Thread : 00002be0 ntdll.dll :0x00007FFA763D0980 ZwWaitForWorkViaWorkerFactory ntdll.dll :0x00007FFA76382680 TpReleaseCleanupGroupMembers KERNEL32.DLL :0x00007FFA76217020 BaseThreadInitThunk ntdll.dll :0x00007FFA76382630 RtlUserThreadStart Thread : 00000e60 ntdll.dll :0x00007FFA763D0980 ZwWaitForWorkViaWorkerFactory ntdll.dll :0x00007FFA76382680 TpReleaseCleanupGroupMembers KERNEL32.DLL :0x00007FFA76217020 BaseThreadInitThunk ntdll.dll :0x00007FFA76382630 RtlUserThreadStart Thread : 0000324c ntdll.dll :0x00007FFA763CCFB0 NtWaitForSingleObject KERNELBASE.dll :0x00007FFA73DB1A40 WaitForSingleObjectEx nvoglv64.dll :0x00007FFA1BC71C00 DrvValidateVersion nvoglv64.dll :0x00007FFA1B9FF73C Symbols not available Thread : 0000429c ntdll.dll :0x00007FFA763CDA80 ZwWaitForMultipleObjects KERNELBASE.dll :0x00007FFA73DDCAD0 WaitForMultipleObjectsEx KERNELBASE.dll :0x00007FFA73DDCAB0 WaitForMultipleObjects nvoglv64.dll :0x00007FFA1BCA7770 DrvPresentBuffers nvoglv64.dll :0x00007FFA1BCA7770 DrvPresentBuffers KERNEL32.DLL :0x00007FFA76217020 BaseThreadInitThunk ntdll.dll :0x00007FFA76382630 RtlUserThreadStart Thread : 00003550 win32u.dll :0x00007FFA741AA0F0 NtUserMsgWaitForMultipleObjectsEx USER32.dll :0x00007FFA74B606F0 MsgWaitForMultipleObjectsEx nvoglv64.dll :0x00007FFA1BC71C00 DrvValidateVersion KERNEL32.DLL :0x00007FFA76217020 BaseThreadInitThunk ntdll.dll :0x00007FFA76382630 RtlUserThreadStart Thread : 00002f18 ntdll.dll :0x00007FFA763D0980 ZwWaitForWorkViaWorkerFactory ntdll.dll :0x00007FFA76382680 TpReleaseCleanupGroupMembers KERNEL32.DLL :0x00007FFA76217020 BaseThreadInitThunk ntdll.dll :0x00007FFA76382630 RtlUserThreadStart Thread : 000006a0 ntdll.dll :0x00007FFA763D0980 ZwWaitForWorkViaWorkerFactory ntdll.dll :0x00007FFA76382680 TpReleaseCleanupGroupMembers KERNEL32.DLL :0x00007FFA76217020 BaseThreadInitThunk ntdll.dll :0x00007FFA76382630 RtlUserThreadStart Thread : 00003a7c ntdll.dll :0x00007FFA763CDA80 ZwWaitForMultipleObjects KERNELBASE.dll :0x00007FFA73DDCAD0 WaitForMultipleObjectsEx combase.dll :0x00007FFA7550A260 CoRevokeInitializeSpy combase.dll :0x00007FFA7550A260 CoRevokeInitializeSpy combase.dll :0x00007FFA7550A260 CoRevokeInitializeSpy combase.dll :0x00007FFA7550A260 CoRevokeInitializeSpy KERNEL32.DLL :0x00007FFA76217020 BaseThreadInitThunk ntdll.dll :0x00007FFA76382630 RtlUserThreadStart Thread : 00003120 ntdll.dll :0x00007FFA763CCFB0 NtWaitForSingleObject KERNELBASE.dll :0x00007FFA73DB1A40 WaitForSingleObjectEx Wintab32.dll :0x00007FFA6A072050 hn_wintab_OnTimeout Wintab32.dll :0x00007FFA6A072050 hn_wintab_OnTimeout Wintab32.dll :0x00007FFA6A072050 hn_wintab_OnTimeout KERNEL32.DLL :0x00007FFA76217020 BaseThreadInitThunk ntdll.dll :0x00007FFA76382630 RtlUserThreadStart Thread : 0000092c win32u.dll :0x00007FFA741AA0F0 NtUserMsgWaitForMultipleObjectsEx USER32.dll :0x00007FFA74B606F0 MsgWaitForMultipleObjectsEx directmanipulation.dll:0x00007FFA6095458B Symbols not available Loaded Modules : 0x00007FF76BE30000 3.4.0.0 blender.exe F:\Blender_build\first\ninja_lite_debug\source\creator\Debug\blender_private.pdb 0x00007FFA76330000 10.0.19041.1806 ntdll.dll 0x00007FFA76200000 10.0.19041.1806 KERNEL32.DLL 0x00007FFA73D90000 10.0.19041.1826 KERNELBASE.dll 0x00007FFA74390000 10.0.19041.1806 SHELL32.dll 0x00007FFA74060000 10.0.19041.789 msvcp_win.dll 0x00007FFA73C90000 10.0.19041.789 ucrtbase.dll 0x00007FFA74B40000 10.0.19041.1503 USER32.dll 0x00007FFA741A0000 10.0.19041.1826 win32u.dll 0x00007FFA75DF0000 10.0.19041.1620 GDI32.dll 0x00007FFA73B80000 10.0.19041.1706 gdi32full.dll 0x00007FFA74EE0000 10.0.19041.1682 ADVAPI32.dll 0x00007FFA64770000 epoxy-0.dll 0x00007FFA75E20000 7.0.19041.546 msvcrt.dll 0x00007FFA388C0000 3.10.2150.1013 python310_d.dll 0x00007FFA75EC0000 10.0.19041.1586 sechost.dll 0x00007FFA64200000 14.30.30708.0 MSVCP140D.dll 0x00007FFA75BD0000 10.0.19041.1806 RPCRT4.dll 0x00007FFA6D510000 14.30.30708.0 VCRUNTIME140D.dll 0x00007FFA711A0000 14.30.30708.0 VCRUNTIME140_1D.dll 0x00007FFA74D90000 10.0.19041.1202 ole32.dll 0x00007FFA754D0000 10.0.19041.1741 combase.dll 0x00007FFA616F0000 6.10.19041.1110 COMCTL32.dll 0x00007FFA59F30000 10.0.19041.685 ucrtbased.dll 0x00007FFA75AE0000 10.0.19041.546 WS2_32.dll 0x00007FFA75470000 10.0.19041.1706 SHLWAPI.dll 0x00007FFA74CE0000 10.0.19041.1741 shcore.dll 0x00007FFA6ED30000 10.0.19041.546 VERSION.dll 0x00007FFA70980000 14.30.30708.0 VCRUNTIME140.dll 0x00007FFA74360000 10.0.19041.546 IMM32.dll 0x00007FFA62D10000 10.0.19041.867 dbghelp.dll 0x00007FFA717F0000 10.0.19041.746 dwmapi.dll 0x00007FFA71B00000 10.0.19041.1806 windows.storage.dll 0x00007FFA732D0000 10.0.19041.1806 Wldp.dll 0x00007FFA73960000 10.0.19041.844 profapi.dll 0x00007FFA70B20000 10.0.19041.1620 uxtheme.dll 0x00007FFA71820000 10.0.19041.546 kernel.appcore.dll 0x00007FFA741D0000 10.0.19041.1415 bcryptPrimitives.dll 0x00007FFA75830000 10.0.19041.1806 MSCTF.dll 0x00007FFA75D00000 10.0.19041.985 OLEAUT32.dll 0x00007FFA63F10000 10.0.19041.1806 OPENGL32.DLL 0x00007FFA6A0B0000 10.0.19041.1806 GLU32.dll 0x00007FFA75A30000 2001.12.10941.16384 clbcatq.dll 0x00007FFA6E560000 10.0.19041.1620 AppXDeploymentClient.dll 0x00007FFA1AF40000 30.0.14.9649 nvoglv64.dll 0x00007FFA74F90000 10.0.19041.1741 SETUPAPI.dll 0x00007FFA74260000 10.0.19041.1620 cfgmgr32.dll 0x00007FFA74170000 10.0.19041.1023 bcrypt.dll 0x00007FFA70210000 10.0.19041.546 WTSAPI32.dll 0x00007FFA73240000 10.0.19041.546 CRYPTBASE.DLL 0x00007FFA734E0000 10.0.19041.546 msasn1.dll 0x00007FFA6E480000 10.0.19041.906 cryptnet.dll 0x00007FFA73A20000 10.0.19041.1320 CRYPT32.dll 0x00007FFA6AF70000 10.0.19041.1566 drvstore.dll 0x00007FFA73710000 10.0.19041.1620 devobj.dll 0x00007FFA74100000 10.0.19041.1806 WINTRUST.dll 0x00007FFA727A0000 10.0.19041.546 ntmarta.dll 0x00007FFA6DE70000 10.0.19041.546 dxcore.dll 0x00007FFA73890000 10.0.19041.546 powrprof.dll 0x00007FFA73870000 UMPDC.dll 0x00007FFA73810000 10.0.19041.546 WINSTA.dll 0x00007FFA63C20000 10.0.19041.1387 dataexchange.dll 0x00007FFA6F3D0000 10.0.19041.1741 d3d11.dll 0x00007FFA702F0000 10.0.19041.1741 dcomp.dll 0x00007FFA72400000 10.0.19041.1806 dxgi.dll 0x00007FFA6CE80000 10.0.19041.1806 twinapi.appcore.dll 0x00007FFA65F30000 10.0.19041.1806 textinputframework.dll 0x00007FFA71060000 10.0.19041.746 CoreMessaging.dll 0x00007FFA70D00000 10.0.19041.546 CoreUIComponents.dll 0x00007FFA705E0000 10.0.19041.1682 wintypes.dll 0x00007FFA66C60000 7.2.19041.746 Oleacc.dll 0x00007FFA6A070000 1.0.0.1 Wintab32.dll 0x00007FFA53C40000 10.0.19041.1023 explorerframe.dll 0x00007FFA60940000 10.0.19041.1566 directmanipulation.dll 0x00007FFA73470000 10.0.19041.546 CRYPTSP.dll 0x00007FFA72A50000 10.0.19041.1052 rsaenh.dll BLI_assert failed: F:\Blender_build\first\blender\source\blender\functions\intern\lazy_function_graph_executor.cc:654, operator ()(), at 'default_value != nullptr' ``` **Exact steps for others to reproduce the error** 1. Create new geometry node modifier 2. Add `Join Geometry` / `To Instances` and connect to group input and output 3. Create new reroute node 4. Connect reroute to multi input socket [2022-10-09 04-39-29.mp4](https://archive.blender.org/developer/F13641895/2022-10-09_04-39-29.mp4)

Added subscriber: @mod_moder

#101828 was marked as duplicate of this issue

#101754 was marked as duplicate of this issue

Added subscriber: @JacquesLucke

Changed status from 'Needs Triage' to: 'Confirmed'

Added subscriber: @PratikPB2123

Crashes in release build so raising the priority :)

Added subscribers: @SergeL, @iss

Added subscriber: @DaveHuman

This issue was referenced by a6b83617e9

Changed status from 'Confirmed' to: 'Resolved'

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Regression: assert and crash on Connecting empty reroute node to multi socket #101705