Active shape key gets lost upon edit mode undo #96205

New Issue

Dvorakir · 2022-03-06T21:13:20+01:00

Dvorakir commented

2022-03-06 21:13:20 +01:00

System Information
Operating system: Windows-10-10.0.19043-SP0 64 Bits
Graphics card: NVIDIA GeForce GTX 1070 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 511.65

Blender Version
Broken: version: 3.1.0 Release Candidate, branch: master, commit date: 2022-03-04 14:21, hash: 45079b169d
Worked: 3.0.0

Short description of error
The active shape key data is lost whenever undo is used in edit mode, resetting the mesh to basis.
Happens both with Relative enabled and disabled.
There doesn't seem to be any way to get the shape key back other than loading an older save; redo does not help.

Exact steps for others to reproduce the error
based on the default scene:

add two shape keys to the default cube
make some edits in Key 1
undoing while in edit mode removes all edits in the shapekey

blender_2022-03-06_21-03-31.mp4

**System Information** Operating system: Windows-10-10.0.19043-SP0 64 Bits Graphics card: NVIDIA GeForce GTX 1070 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 511.65 **Blender Version** Broken: version: 3.1.0 Release Candidate, branch: master, commit date: 2022-03-04 14:21, hash: `45079b169d` Worked: 3.0.0 **Short description of error** The active shape key data is lost whenever undo is used in edit mode, resetting the mesh to basis. Happens both with Relative enabled and disabled. There doesn't seem to be any way to get the shape key back other than loading an older save; redo does not help. **Exact steps for others to reproduce the error** based on the default scene: 1. add two shape keys to the default cube 2. make some edits in Key 1 3. undoing while in edit mode removes all edits in the shapekey [blender_2022-03-06_21-03-31.mp4](https://archive.blender.org/developer/F12899793/blender_2022-03-06_21-03-31.mp4)

Dvorakir commented

2022-03-06 21:13:20 +01:00

Added subscriber: @Dvorakir

Pratik Borhade commented

2022-03-07 07:13:56 +01:00

Added subscriber: @PratikPB2123

Pratik Borhade commented

2022-03-07 07:18:17 +01:00

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

Pratik Borhade commented

2022-03-07 07:18:17 +01:00

Hi, thanks for the report.
I can confirm on current master. I suspect issue came with d961adb866
Will bisect just to be sure

Hi, thanks for the report. I can confirm on current master. I suspect issue came with d961adb866 Will bisect just to be sure

Campbell Barton self-assigned this 2022-03-07 07:48:38 +01:00

Pratik Borhade commented

2022-03-07 07:59:54 +01:00

Pointed to the same commit. @ideasman42 , can you take a look?
Fix is also important for 3.1 I think.

(edit: Campbell has already seen the task. I forgot to refresh the page before commenting...)

Pointed to the same commit. @ideasman42 , can you take a look? Fix is also important for 3.1 I think. (edit: Campbell has already seen the task. I forgot to refresh the page before commenting...)

blender-admin commented

2022-03-07 11:31:48 +01:00

This issue was referenced by 72e20785e1

This issue was referenced by 72e20785e1e2ed7b15a9765ebb6df646fd32dbff

Campbell Barton commented

2022-03-07 11:35:07 +01:00

Changed status from 'Confirmed' to: 'Resolved'

Campbell Barton closed this issue

2022-03-07 11:35:07 +01:00

Thomas Dinges added this to the 3.1 milestone 2023-02-08 15:52:44 +01:00

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Active shape key gets lost upon edit mode undo #96205