Unexpected clip duplication and crash in NLA editor, when moving multi instance shapekey animation clips #114216

New Issue

Takuya Sawatari · 2023-10-28T00:23:01+02:00

Takuya Sawatari commented

2023-10-28 00:23:01 +02:00

System Information
Operating system: Linux-5.15.0-75-generic-x86_64-with-glibc2.35 64 Bits, X11 UI
Graphics card: NVIDIA GeForce RTX 3060/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 515.105.01

Blender Version
Broken: version: 3.6.5, branch: blender-v3.6-release, commit date: 2023-10-16 14:30, hash: cf1e1ed46b7e
Worked: I couldn't find one. I tried 3.6.0 and 3.5.0, but they also crashed.

Short description of error
When multi instance shapekey animation clips are moved in the NLA editor, each instance of the clip appears duplicated and Blender crashes.

Exact steps for others to reproduce the error
Quick procedure using the attached file:

Load the attached blend file.
Select one of the "KeyAction" clips, press G and move the mouse.
Observe that both of its instances appear duplicated. (2 Temp-Meta clips)
Press ESC.
Observe that Blender crashes.

Manually creating a scene that crashes:

Create a new general blend file.
Add a mesh object.
Add some shapekeys to the mesh object.
Add a keyframe to a shapekey.
Use Alt+D to duplicate the object.
Open the NLA editor and push the action onto the stack.
Add more NLA tracks, so that there are at least 3 tracks.
Move the clip by pressing G.
Observe that both of its instances appear duplicated. (2 Temp-Meta clips)
Press ESC.
Observe that Blender crashes.

Crash without pressing ESC:

Load the attached blend file.
Select one of the "KeyAction" clips, press Shift+D to duplicate it.
Observe that each instance of the clip is duplicated twice. (Duplicate clip in timeline + Temp-Meta clip)
Move the Temp-Meta clip around.
Observe that Blender crashes.

**System Information** Operating system: Linux-5.15.0-75-generic-x86_64-with-glibc2.35 64 Bits, X11 UI Graphics card: NVIDIA GeForce RTX 3060/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 515.105.01 **Blender Version** Broken: version: 3.6.5, branch: blender-v3.6-release, commit date: 2023-10-16 14:30, hash: `cf1e1ed46b7e` Worked: I couldn't find one. I tried 3.6.0 and 3.5.0, but they also crashed. **Short description of error** When multi instance shapekey animation clips are moved in the NLA editor, each instance of the clip appears duplicated and Blender crashes. **Exact steps for others to reproduce the error** Quick procedure using the attached file: 1. Load the attached blend file. 2. Select one of the "KeyAction" clips, press G and move the mouse. 3. Observe that both of its instances appear duplicated. (2 Temp-Meta clips) 4. Press ESC. 5. Observe that Blender crashes. Manually creating a scene that crashes: 1. Create a new general blend file. 2. Add a mesh object. 3. Add some shapekeys to the mesh object. 4. Add a keyframe to a shapekey. 5. Use Alt+D to duplicate the object. 6. Open the NLA editor and push the action onto the stack. 7. Add more NLA tracks, so that there are at least 3 tracks. 8. Move the clip by pressing G. 9. Observe that both of its instances appear duplicated. (2 Temp-Meta clips) 10. Press ESC. 11. Observe that Blender crashes. Crash without pressing ESC: 1. Load the attached blend file. 2. Select one of the "KeyAction" clips, press Shift+D to duplicate it. 3. Observe that each instance of the clip is duplicated twice. (Duplicate clip in timeline + Temp-Meta clip) 4. Move the Temp-Meta clip around. 5. Observe that Blender crashes.

nla-crash2.blend

95 KiB

Takuya Sawatari added the

labels 2023-10-28 00:23:01 +02:00

Philipp Oeser commented

2023-11-03 10:37:26 +01:00