Are you referring to 'going outside', like back to where you started the game?
Curious when bug fixes break something else, huh. I wanted to fix a problem with the music in that room starting before the player goes into the cave, but instead, I break the whole room. I saw the same crash, went back in, fixed the issue, played until I reached that room and it's working fine now.
Thanks for bringing this to my attention. Credit given (of course) and I hope to see you take another crack at this game! :)