I don’t want to create a new topic since my problem is also related to colors.
This was tested on versions 24.01.28 and on the new nightly build from github 24.02.15
I see a difference in colors when GPU effects are enabled, these are imported frames from the same video where GPU effects are enabled and where they are disabled.
This is what the image looks like when GPU effects are turned off (the image has the correct colors):
This is what the image looks like if you enable GPU effects:
These are the parameters of the video file (recorded using OBS):
