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Overrides: Crash with animated IK control on linked armature #80078

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opened 2020-08-24 15:15:02 +02:00 by Demeter Dzadik · 11 comments
Demeter Dzadik commented 2020-08-24 15:15:02 +02:00
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System Information
Operating system: Linux-5.4.0-7634-generic-x86_64-with-debian-bullseye-sid 64 Bits
Graphics card: GeForce RTX 2080/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 440.100

Blender Version
Broken: version: 2.91.0 Alpha, branch: master, commit date: 2020-07-28 11:49, hash: 2a52c2d001

Short description of error
After linking and library overriding a complex rig, various actions can cause a crash with this backtrace:
backtrace1

Trying to simplify the rig further has been a nightmare. With 24 attempts over the past hour, all I managed to do while still getting the crashes is delete all but one mesh object - but the backtrace is going on about IK functions, so I don't understand why the mesh would be relevant. Even so, removing other bones also seems to make the crash go away... I am very confused.

Exact steps for others to reproduce the error

  • Rig file: sprite.rig.blend
  • Link CH-sprite collection in a fresh project
  • Make library override
  • Animate the "IK-MSTR-P-Wrist.L" bone with a couple of keyframes
  • Save and restart blender
  • Do actions such as playing animation, changing action, select, deselect all, box select, Save As
  • It should crash.

00_override_crash.mp4

CC @mont29 Sorry I couldn't simplify the file any further.

**System Information** Operating system: Linux-5.4.0-7634-generic-x86_64-with-debian-bullseye-sid 64 Bits Graphics card: GeForce RTX 2080/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 440.100 **Blender Version** Broken: version: 2.91.0 Alpha, branch: master, commit date: 2020-07-28 11:49, hash: `2a52c2d001` **Short description of error** After linking and library overriding a complex rig, various actions can cause a crash with this backtrace: [backtrace1](https://archive.blender.org/developer/F8808240/backtrace1) Trying to simplify the rig further has been a nightmare. With 24 attempts over the past hour, all I managed to do while still getting the crashes is delete all but one mesh object - but the backtrace is going on about IK functions, so I don't understand why the mesh would be relevant. Even so, removing other bones also seems to make the crash go away... I am very confused. **Exact steps for others to reproduce the error** - Rig file: [sprite.rig.blend](https://archive.blender.org/developer/F8808249/sprite.rig.blend) - Link CH-sprite collection in a fresh project - Make library override - Animate the "IK-MSTR-P-Wrist.L" bone with a couple of keyframes - Save and restart blender - Do actions such as playing animation, changing action, select, deselect all, box select, Save As - It should crash. [00_override_crash.mp4](https://archive.blender.org/developer/F8808261/00_override_crash.mp4) CC @mont29 Sorry I couldn't simplify the file any further.
Demeter Dzadik commented 2020-08-24 15:15:02 +02:00
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Added subscribers: @mont29, @Mets

Added subscribers: @mont29, @Mets
Philipp Oeser commented 2020-08-25 13:42:37 +02:00
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Added subscriber: @lichtwerk

Added subscriber: @lichtwerk
Philipp Oeser commented 2020-08-25 13:42:37 +02:00
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Changed status from 'Needs Triage' to: 'Confirmed'

Changed status from 'Needs Triage' to: 'Confirmed'
Philipp Oeser commented 2020-08-25 13:42:37 +02:00
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OK, can confirm, but I havent been able to reproduce this from scratch in a simple file, but this seems to be related to the bone layers all being protected

image.png

Now absolutely no expert in rigging, but for me, the issues go away if I disable the Layer Proxy Protection, can you confirm @Mets ?

OK, can confirm, but I havent been able to reproduce this from scratch in a simple file, but this seems to be related to the bone layers all being protected ![image.png](https://archive.blender.org/developer/F8810329/image.png) Now absolutely no expert in rigging, but for me, the issues go away if I disable the Layer Proxy Protection, can you confirm @Mets ?
Philipp Oeser commented 2020-08-25 13:57:41 +02:00
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Yeah, pretty sure there is some issue with Layer Proxy Protection and Overrides (I am not even sure how this is supposed to work with Overrides -- will have to read a bit more), but I guess this is in better hands if @mont29 has a look...

Yeah, pretty sure there is some issue with Layer Proxy Protection and Overrides (I am not even sure how this is supposed to work with Overrides -- will have to read a bit more), but I guess this is in better hands if @mont29 has a look...
Demeter Dzadik commented 2020-08-25 16:41:30 +02:00
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Turning off layer protection does not seem to make a difference on my end:

video-2020-08-25_16.39.45.mp4

Turning off layer protection does not seem to make a difference on my end: [video-2020-08-25_16.39.45.mp4](https://archive.blender.org/developer/F8810526/video-2020-08-25_16.39.45.mp4)
Philipp Oeser commented 2020-08-25 18:38:29 +02:00
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Hm, OK, not sure what is going on then, was fixing it on my side.
What happens when you disable protected layers in the source file after animating the main file?

Hm, OK, not sure what is going on then, was fixing it on my side. What happens when you disable protected layers in the source file **after** animating the main file?
blender-admin commented 2020-08-27 16:50:01 +02:00
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This issue was referenced by 812c234377

This issue was referenced by 812c234377302fdcb6b6bf8c7715507f9831525f
blender-admin commented 2020-08-27 16:50:01 +02:00
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This issue was referenced by df8a63bb9c

This issue was referenced by df8a63bb9c0a7090562e3f33c5da80d5dafa386d
Bastien Montagne self-assigned this 2020-08-27 16:54:52 +02:00
Bastien Montagne commented 2020-08-27 16:54:52 +02:00
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@Mets can you please confirm that the proposed patch fixes the issue for you as well? Thanks.

@Mets can you please confirm that the proposed patch fixes the issue for you as well? Thanks.
Bastien Montagne commented 2020-08-28 15:11:44 +02:00
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Changed status from 'Confirmed' to: 'Resolved'

Changed status from 'Confirmed' to: 'Resolved'
Thomas Dinges added this to the 2.90 milestone 2023-02-08 16:25:40 +01:00
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