Some bone animations break upon performing unrelated actions #100012

New Issue

Jason · 2022-07-27T02:59:33+02:00

Jason commented

2022-07-27 02:59:33 +02:00

System Information
Operating system: Windows-10-10.0.22000-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 3080/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 511.79

Blender Version
Broken: version: 3.2.0, branch: master, commit date: 2022-06-08 10:22, hash: e05e1e3691
Worked: Unsure

Short description of error
I have noticed that sometimes, doing random actions will break existing working animations in a blender project, but only for some bones. I'm not even sure what random actions will cause this - I've always had to resort to just loading from the last saved version. However, I do have a way to reproduce this issue almost 100% of the time really easily:

Exact steps for others to reproduce the error
*Open this blender file:
*Select the armature (It's called "Armature")
*Open the action "Reload" in the action editor
*Play the animation, see that it is working
*Now, turn on or off the fake user save toggle button (the shield icon)
*Play the animation again, notice how the wrists no longer move, but everything else still moves.

template.blend

This can also be prevented by:

open file
select the armature (It's called "Armature")
go to posemode
select all bones
go back to objectmode
continue with the steps above ("*Open the action "Reload" in the action editor")
bug does not occur

Note this does not have to be the the fake user save toggle button (the shield icon), e.g. toggling Manual Frame Range in the Action Editor triggers this, too

workaround (until this is fixed for good):

go to posemode
select all bones
change any setting that triggers re-evaluation of the action (this might be clicking the fake user save toggle button (the shield icon) again, or toggling Manual Frame Range in the Action Editor, or changing a keyframe or curve visibility in the Graph Editor
Action is working again

**System Information** Operating system: Windows-10-10.0.22000-SP0 64 Bits Graphics card: NVIDIA GeForce RTX 3080/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 511.79 **Blender Version** Broken: version: 3.2.0, branch: master, commit date: 2022-06-08 10:22, hash: `e05e1e3691` Worked: Unsure **Short description of error** I have noticed that sometimes, doing random actions will break existing working animations in a blender project, but only for some bones. I'm not even sure what random actions will cause this - I've always had to resort to just loading from the last saved version. However, I do have a way to reproduce this issue almost 100% of the time really easily: **Exact steps for others to reproduce the error** *Open this blender file: *Select the armature (It's called "Armature") *Open the action "Reload" in the action editor *Play the animation, see that it is working *Now, turn on or off the fake user save toggle button (the shield icon) *Play the animation again, notice how the wrists no longer move, but everything else still moves. [template.blend](https://archive.blender.org/developer/F13320682/template.blend) This can also be prevented by: - open file - select the armature (It's called "Armature") - go to posemode - select all bones - go back to objectmode - continue with the steps above ("*Open the action "Reload" in the action editor") - bug does not occur Note this does not have to be the the fake user save toggle button (the shield icon), e.g. toggling Manual Frame Range in the Action Editor triggers this, too workaround (until this is fixed for good): - go to posemode - select all bones - change any setting that triggers re-evaluation of the action (this might be clicking the fake user save toggle button (the shield icon) again, or toggling Manual Frame Range in the Action Editor, or changing a keyframe or curve visibility in the Graph Editor - Action is working again

Jason commented

2022-07-27 02:59:33 +02:00

Added subscriber: @imuh3

Pratik Borhade commented

2022-07-27 06:47:03 +02:00

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

Philipp Oeser commented

2022-08-16 11:24:28 +02:00

Added subscriber: @lichtwerk

Philipp Oeser commented

2022-08-16 11:24:28 +02:00

Note this does not have to be the the fake user save toggle button (the shield icon), e.g. toggling Manual Frame Range in the Action Editor triggers this, too

workaround (until this is fixed for good):

go to posemode
select all bones
change any setting that triggers re-evaluation of the action (this might be clicking the fake user save toggle button (the shield icon) again, or toggling Manual Frame Range in the Action Editor, or changing a keyframe or curve visibility in the Graph Editor
Action is working again

Note this does not have to be the the fake user save toggle button (the shield icon), e.g. toggling `Manual Frame Range` in the Action Editor triggers this, too workaround (until this is fixed for good): - go to posemode - select all bones - change any setting that triggers re-evaluation of the action (this might be clicking the fake user save toggle button (the shield icon) again, or toggling `Manual Frame Range` in the Action Editor, or changing a keyframe or curve visibility in the Graph Editor - Action is working again

Philipp Oeser removed the

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Some bone animations break upon performing unrelated actions #100012