This is the most impressive project I've seen in this jam, and is just generally very impressive overall. Great work!
I received some feedback about the checkpoints in playtesting. It wouldn't have made sense for a guard to place you back inside a restricted zone if you got caught. So I left it out, but the difficulty of the stealth part was lessened (quite a bit!) to make the resets fewer, even increasing the time it takes to get caught. I suppose I didn't get that bit quite right- but I appreciate the feedback!
The vent lever is definitely a bug, not one which I have encountered so far. I will look to put out a fix for it when I get time, thank you buddy!