welp. after going out of the room with the giant hole in the floor, i got a black screen + an error about some kind of audio failing to load and retrying didn't help. i restarted the game and it'd removed all my save files except the first one.
lost over an hour of progress, which sucks, but i think the files getting deleted was a problem with my winrar rather than the game. wanted to let you know about the issue with leaving that room though.
i look forward to finishing this game after i recover from losing my 13 bad ends ;-;