After checking my previous footage and considering the other conditions that might've caused it, I think I misidentified the cause and it's actually an issue with how the front door is handled. If you walk up to the door, leave, and then hit the enter key anywhere, it takes you to the next level even without checking if you're in range of the door. For context, I happened to be at low health at the time because I was trying to see if I could kill all the monsters before trying the door (I was really desperate at the time) so I had walked into range of the front doors, left to clear out other sections, and then decided to double-check a room to see if it was clear, and the only reason it appeared to reset was because the door was broken at the time. I tried reproducing the bug with the new build and it takes me to the next level. Sorry about the misidentification.