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Motion path not updating
Closed, InvalidPublic


System Information
Operating system: Windows-10-10.0.18362 64 Bits
Graphics card: Radeon 500 Series ATI Technologies Inc. 4.5.13571 Core Profile Context 19.10.1 26.20.13025.10004

Blender Version
Broken: version: 2.81 (sub 16), branch: master, commit date: 2019-11-20 14:27, hash: rB26bd5ebd42e3
Worked: (optional)

Short description of error
Motion paths in pose mode not updating via manipulations from graph editor.

Exact steps for others to reproduce the error
I was animation a couple of frames in the pose mode via moving the rigs in the 3d view.
Then, I went to the Graph editor to make some tweaks in there and the bug pupped up!
After moving the location of a rig from the Graph editor, the motion path's location for that frame doesn't update. it even merges with the previous frame.
(My animation isn't affected, only the motion paths wont update.)

Event Timeline

Campbell Barton (campbellbarton) changed the task status from Needs Triage to Needs Information from User.Tue, Feb 11, 5:45 AM

This report doesn't provide steps to redo the bug, please include exact steps from factory settings or include a blend that exposes the problem.

They're talking about the thing where motion paths aren't continuously updated, outside of operators that specifically tell it to.
Or rather, the keyframe/fcurve editor windows don't call this update.

Richard Antalik (ISS) changed the task status from Needs Information from User to Confirmed.Tue, Feb 11, 9:37 PM
Richard Antalik (ISS) changed the task status from Confirmed to Needs Triage.Tue, Feb 11, 9:56 PM

Though it seems that motion paths are not supposed to be updated automatically. Reason why they were updated comment above is, that auto-keyframing is enabled.

Perhaps we could keep this feature request as known issue?

Closing since this is working as intended.

Improved motion-paths is planned T68901: Motion path viewport editing, T68905: Motion path revamp.