I found a few very mild glitches (spoilers):
If you turn room 2's PC off quickly enough, the code will disappear but the green will stay on. Clicking a second time will turn the monitor off and everything will be fine.
If you go back to room 7 from a solved lever room and then back in, the camera will still be locked, even though the door appears. This is fixed just by unsolving and re-solving the levers.