I record this osprey nest webcam 24/7 with 1-hour auto-completes, never had this problem until just now.
The picture being recorded on the screen was normal, I was watching, but my usual freebie video editor couldn't open the latest, manually stopped, clip, so I put it thru a video converter which often rescues 'difficult' files... but this is what I got:
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This may well not be Bandicam related, but I wonder if anyone with experience can diagnose what underlying problem might have caused this. The next section was fine.