In version 5.3.1 there is an EXTRA frame at the end after an upscale (unlike a recent bug where one was missing). This is completely messing up my scripts which heavily rely on segmentation and concatenation in ProRes. For now, I’ll just have to compensate by removing the extra frame in each segment until this is fixed.
This problem isn’t restricted to ProRes as I checked it also happens with h.265. In case it’s relevant, the source files contain only video.
It should be really easy to reproduce this problem. But if there is any difficulty, only then will I provide log files (directly by email, not here, due to the private details they contain).
Andy
Apple Mac Studio M1 Max.