This happens fairly frequently to me. Quitting QuickTime and reopening the file always solves it, but eventually it will happen again. This never happens right off the bat. It will be playing, and then I'll drag the slider forwards or backwards and then it just stops playing. I'm not sure if this started with Ventura or happened before too. Anyone else experiencing this? Happens with any aif or mp3 file. The files in question are on the internal SSD.