Working on a project where I'm having a couple of weird issues with RAM preview. on CC 12.2 latest update. Win 7 pro x64. This has actually been a problem going back to 12 I think. Now it doesn't actually affect renders so I've learned to deal with it. Random frames from some videos will flash the footage-missing color bars, during playback. However it's only a few frames, not the whole video, and it only occurs during RAM preview, which is odd.
However more recently I have encountered a much worse error - RAM preview, once initiated, cannot be stopped, until either memory is full or I have to force quit the program. I will submit a bug request but has anyone else seen this? This happens especially during non-MP RAM preview