Operating system: Linux
Graphics card: NVIDIA GTX 560 Ti
Broken: from 2.90.0 to 2.91.2
Short description of error
In the sequencer, a simple cross fade (cross or gamma cross) beteween two adjustement layer strip doesn't work since Blender 2.90.0.
Exact steps for others to reproduce the error
in the sequencer, add two images separated by some empty frames, add ajustement layer on top of them and cross fade the two AL strips. The attached file work with 2.83.* (replace both images by the first you find - obviously, in true workflow, I use this functionality with more complex stacked strips...).