YOWZA!! Thanks for the heads up! I'm going to push out a patch later today - i did some tricks on my end that should help with optimization (fingers crossed) so hopefully that'll be a bit better soon.
Just to clarify, were you running the game on both monitors when you got this glitch? And can I ask what you meant by "there should be 2 more visible inside that room?" What should be visible?
AND THANK YOU SO MUCH FOR PLAYING! We made this game very fast, so there are definitely some things that need tweaking. Gonna try to get these kinks ironed out ASAP!