(Crash Report) Using "Auto IK" on FK controls with Rigify will crash Blender. (MacOS) #75649

New Issue

Timothy Cook · 2020-04-12T16:27:45+02:00

Timothy Cook commented

2020-04-12 16:27:45 +02:00

System Information
Operating system: Darwin-19.4.0-x86_64-i386-64bit 64 Bits
Graphics card: AMD Radeon Pro 580 OpenGL Engine ATI Technologies Inc. 4.1 ATI-3.8.24

Blender Version
Broken: version: 2.83 (sub 13), branch: master, commit date: 2020-04-11 19:01, hash: 0a747cd4e3
Worked: (newest version of Blender that worked as expected)

Short description of error
If Auto IK is turned on in the pose option and you attempt to move the arm FK controls Blender will crash.

I made a report for Windows too because the issue doesn't crash Blender in that OS but locks the controls where you can not move the arm. Iassuming the two are related but I don't know for sure, so I separated the reports.
https://developer.blender.org/T75640

*Generate a Rigify Rig
*Enable Auto IK in the Pose options
*Enter into Pose mode
*Click on the Arm's FK control
*Hit G to move

**System Information** Operating system: Darwin-19.4.0-x86_64-i386-64bit 64 Bits Graphics card: AMD Radeon Pro 580 OpenGL Engine ATI Technologies Inc. 4.1 ATI-3.8.24 **Blender Version** Broken: version: 2.83 (sub 13), branch: master, commit date: 2020-04-11 19:01, hash: `0a747cd4e3` Worked: (newest version of Blender that worked as expected) **Short description of error** If Auto IK is turned on in the pose option and you attempt to move the arm FK controls Blender will crash. I made a report for Windows too because the issue doesn't crash Blender in that OS but locks the controls where you can not move the arm. Iassuming the two are related but I don't know for sure, so I separated the reports. https://developer.blender.org/T75640 *Generate a Rigify Rig *Enable Auto IK in the Pose options *Enter into Pose mode *Click on the Arm's FK control *Hit G to move

Timothy Cook commented

2020-04-12 16:27:45 +02:00

Added subscriber: @CookItOff

blender-admin commented

2020-04-12 16:27:45 +02:00

#75640 was marked as duplicate of this issue

Ivan Cappiello commented

2020-04-14 15:08:15 +02:00

Added subscriber: @icappiello

Ivan Cappiello commented

2020-04-14 15:08:15 +02:00

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

Ivan Cappiello commented

2020-04-14 15:08:15 +02:00

Issue confirmed on OSX. 2.82a isn't affected.
this is not directly related to rigify itself
Any armature with auto-ik option enabled will crash.
Should be reported as a separate issue.

Issue confirmed on OSX. 2.82a isn't affected. this is not directly related to rigify itself Any armature with auto-ik option enabled will crash. Should be reported as a separate issue.

Demeter Dzadik commented

2020-04-14 15:22:08 +02:00

Added subscriber: @Mets

Demeter Dzadik commented

2020-04-14 15:22:08 +02:00

On Windows I can't get it to crash, but it seems that Auto-IK no longer considers a bone the end of the chain when it's not connected - meaning, the IK chain will go all the way up to the root!

Sybren A. Stüvel commented

2020-04-14 15:37:18 +02:00

Added subscriber: @dr.sybren

Sybren A. Stüvel commented

2020-04-14 15:37:18 +02:00

Changed status from 'Confirmed' to: 'Needs User Info'

Sybren A. Stüvel commented

2020-04-14 15:37:18 +02:00

@CookItOff please take the time to test with older releases of Blender, to see if this was something recently introduced or something older. It really helps developers to have such information.

Ivan Cappiello commented

2020-04-14 15:42:51 +02:00

@dr.sybren as reported 2.82a works fine.

Sybren A. Stüvel commented

2020-04-14 16:01:44 +02:00

@CookItOff or @icappiello , could you attach a test blend file? If possible, one that doesn't depend on Rigify? A complete Rigify rig is too complex to dive into, and would take up a lot of developer time if that's the only way to reproduce this issue.

Ivan Cappiello commented

2020-04-14 17:34:41 +02:00

@dr.sybren can be reproduced in few clicks:

just add 2 connected bones.
Enable auto-ik from the property shelf.
select the last bone and move it using G + mouse

anyway here is the sample file
1 disconnected chain
1 connected chain

EDIT:
replaced attached file
auto-ik_issue.blend

@dr.sybren can be reproduced in few clicks: 1. just add 2 connected bones. 2. Enable auto-ik from the property shelf. 3. select the last bone and move it using G + mouse anyway here is the sample file 1 disconnected chain 1 connected chain EDIT: replaced attached file [auto-ik_issue.blend](https://archive.blender.org/developer/F8471516/auto-ik_issue.blend)

Timothy Cook commented

2020-04-15 02:19:06 +02:00

@dr.sybren I must have forgot to add which version it was working on with this report. I had made two separate bug reports for Windows and Mac because each version made Blender fault differently while performing the same action. The Windows version is locking up the bone controls with Auto IK enabled and trying to move said bone. And the Mac version is crashing when performing that same task.
Both version worked two version prior of the version I reported above.

I see that @icappiello upload a blend file so I won't bother uploading another.

Thanks

@dr.sybren I must have forgot to add which version it was working on with this report. I had made two separate bug reports for Windows and Mac because each version made Blender fault differently while performing the same action. The Windows version is locking up the bone controls with Auto IK enabled and trying to move said bone. And the Mac version is crashing when performing that same task. Both version worked two version prior of the version I reported above. I see that @icappiello upload a blend file so I won't bother uploading another. Thanks

blender-admin commented

2020-04-15 12:32:06 +02:00

This issue was referenced by 6547d9d3e2

This issue was referenced by 6547d9d3e2cb0eb0b3da8ebf3a96f6664f9c2610

Sebastian Parborg commented

2020-04-15 12:35:00 +02:00

Added subscriber: @ZedDB