I noticed the little window with the progress bars which comes up when saving a sequence with a file cache, or rendering a sequence to disk, does not close itself when the interrupt button is clicked. Nor will it close itself when the operation has successfully finished. The window stays open saying "Run Hscript command" in the bottom progress bar.
OK... But with the Apple Silicon build, I have this issue every time the progress window pops up, and in every build I tried. I haven't encountered it ever on the Intel build (currently on 19.0.561). So maybe the AS build triggers the issue always instead of just sometimes...?
Yup, it's possible. The AS build could have the perfect conditions for triggering the underlying bug, which would actually make it easier to debug compared to other builds/platforms. In any case, it's on our radar to fix.