Operating system: Linux-5.4.0-7634-generic-x86_64-with-debian-bullseye-sid 64 Bits
Graphics card: Radeon Vega Frontier Edition (VEGA10, DRM 3.35.0, 5.4.0-7634-generic, LLVM 10.0.0) X.Org 4.6 (Core Profile) Mesa 20.0.8
Broken: version: 2.90.0 Alpha, rB02c09773ea07
I checked if rB2840782d8478 is the culprit, but it didn't work with its parent commit either (the one mentioned above).
Short description of error
Background is drawn with no alpha for some animation channels.
Exact steps for others to reproduce the error
- Insert keyframe for default cube
- Enter Animation workspace
-> Icon for the cube should have a black background in the Dope Sheet channel list.