I must be misunderstanding.
The banding/flickering issue (as fas as it affects me) is the same in the april update as it was in march. Aka, it happens, unless i run the command that’s been mentioned.
In the march update, any files that were HDR would switch to HDR, and they still do. There was never a false positive, and there still isn’t. I’m not sure what the autoswitching is for.
If the above is irrelevant then please just disregard.