Yea I do remember actually - the part where you are fighting that jumping spider boss thing. I'm not sure if I walked off screen somehow or something but I wound up in a state where I was on another screen (the one to the left of where that fight happens) but I could still hear the boss sounds. Everything was just stuck with me unable to do anything so I restarted the game. Fortunately the fact it saves and reloads meant I lost no progress.