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Maniphest T93892

Change bone name cause vertex group not working until select another vertex group
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Description

System Information
Operating system: Windows-10-10.0.19042-SP0 64 Bits
CPU: AMD Ryzen R7-3700X
Graphics card: Radeon RX Vega 64 ATI Technologies Inc. 4.5.14742 Core Profile Context 21.8.2 27.20.22025.1006

Blender Version
Broken: version: 3.0.0, branch: master, commit date: 2021-12-02 18:35, hash: rBf1cca3055776
Caused by rB3b6ee8cee708: Refactor: Move vertex group names to object data

Short description of error
After change bone name in edit or pose mode then pose in pose mode
Mesh will not move (only effect renamed bone) until you select on that object then select another vertex group.

Exact steps for others to reproduce the error

  • Rig default cube with Armature Deform with Automatic Weight
  • Rename any bone
  • Try to pose

Bug_Demo 300.blend1 MBDownload

Revisions and Commits

rB Blender
D13526rB10d65b821b4e Fix T93892: Changing bone name leaves non-functional vertex group
D13526rBfc14d02bc596 Fix T93892: Changing bone name leaves non-functional vertex group

Related Objects

Event Timeline

magnative (magnative) created this task.Dec 9 2021, 11:32 AM
Pratik Borhade (PratikPB2123) added a subscriber: Pratik Borhade (PratikPB2123).Dec 9 2021, 11:59 AM
Pratik Borhade (PratikPB2123) changed the task status from Needs Triage to Confirmed.Dec 9 2021, 12:15 PM

Hi, thanks for the report. I can confirm on master.

This was working on previous version. Will bisect

Pratik Borhade (PratikPB2123) added a project: Animation & Rigging.EditedDec 9 2021, 12:23 PM
Pratik Borhade (PratikPB2123) added a subscriber: Hans Goudey (HooglyBoogly).

Not bisected but I suspect this as a culprit commit rB3b6ee8cee708: Refactor: Move vertex group names to object data

WorkingBroken
62d9dabc7db4118803893e65

cc @Hans Goudey (HooglyBoogly)

(Setting this to high priority since this is a regression)

Pratik Borhade (PratikPB2123) triaged this task as High priority.Dec 9 2021, 12:24 PM
Pratik Borhade (PratikPB2123) updated the task description. (Show Details)
Philipp Oeser (lichtwerk) claimed this task.Dec 9 2021, 1:34 PM
Philipp Oeser (lichtwerk) added a subscriber: Philipp Oeser (lichtwerk).

Will check.

Philipp Oeser (lichtwerk) added a revision: D13526: Fix T93892: Changing bone name leaves non-functional vertex group.Dec 9 2021, 2:20 PM
Philipp Oeser (lichtwerk) mentioned this in T93479: 3.0 Potential candidates for corrective releases.Dec 9 2021, 3:25 PM
Philipp Oeser (lichtwerk) closed this task as Resolved by committing rBfc14d02bc596: Fix T93892: Changing bone name leaves non-functional vertex group.Dec 9 2021, 4:48 PM
Philipp Oeser (lichtwerk) added a commit: rBfc14d02bc596: Fix T93892: Changing bone name leaves non-functional vertex group.
Philipp Oeser (lichtwerk) added a commit: rB10d65b821b4e: Fix T93892: Changing bone name leaves non-functional vertex group.Jan 11 2022, 9:00 AM
Philipp Oeser (lichtwerk) mentioned this in T95111: Trouble with renaming bones after update.Jan 21 2022, 3:52 PM
nigelmerle added a subscriber: nigelmerle.Jan 25 2022, 2:42 PM

hello i am having the same issues in blender 3.0 ...Renaming bones breaks the rig and sometimes the weight painting is gone, when i move bones the mesh doesnt move, it seems that blender have troubles to refresh the changes of the renamed bone and having problems to rename the vertext groups accordingly....i had to go in vertex group and click several times then go back...then suddenly after a few minutes then blender decided to reflect the changes...then when i move the bones, then the mesh moves again. But to have to this with all my models is just a waste of time to try to force blender to do the refresh.
But to my disappointment when i exported the rig to fbx, there is was big hole in the eyes of my mesh...
what is the solution to this problem, do we need to downgrade blender ? this 3.0 is not ready i think

also i want to add that since blender 2.79 the fbx exporter was never working, so i had to buy a plugin called better fbx on blender market...i never had any problem to export my fbx but now i see that blender is causing issues after i rename the bone of my mesh

kindly fix this, this is very annoying

Philipp Oeser (lichtwerk) added a comment.Jan 25 2022, 4:04 PM

Try 3.0.1 Release Candidate from https://builder.blender.org/download/daily/ (fixed there)

Philipp Oeser (lichtwerk) merged a task: T95111: Trouble with renaming bones after update.Feb 7 2022, 10:09 AM
Philipp Oeser (lichtwerk) added subscribers: Sergey Sokolov (Dying_Agrippa), Thomas Dinges (dingto).