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Incorrect redraw state when mouse moves between movie clip editors
Confirmed, NormalPublicBUG

Description

System Information
Operating system: Linux-5.3.0-40-generic-x86_64-with-debian-buster-sid 64 Bits
Graphics card: Radeon RX Vega ATI Technologies Inc. 4.5.13581 Core Profile Context

Blender Version
Broken: version: 2.83 (sub 6), branch: master, commit date: 2020-03-09, hash: rBUnknown
Worked: (optional)

Short description of error
Non stop drawing after moving mouse between motion tracker editors

Exact steps for others to reproduce the error
During testing T67832: Background images ignore View transform I came across the issue that the motion tracker editors got into a state where they were always redrawn. I wasn't able to get blender back to its correct state.

You need a debugger to test this. I used renderdoc.


  • Open the attach scene.
  • Move mouse from the bottom movie clip editor to the top movie clip editor.
  • now a movie clip editors is in a state where its redrawn and you're not able to get out of the state.

I wasn't able to detect this with other mouse movements.

Event Timeline

Germano Cavalcante (mano-wii) changed the task status from Needs Triage to Confirmed.Tue, Mar 10, 3:21 PM
Germano Cavalcante (mano-wii) changed the subtype of this task from "Report" to "Bug".

Part of the problem is this UI_view2d_sync called within a drawing function, causing a kind of infinite loop -> clip_dopesheet_draw.c$319