Urgent fix to a soft lock that could happen in Sunken Grotto, if you killed the bottom-most Knightcap in the Buff Puff fight room, before triggering the little tutorial cutscene that introduces the Buff Puffs.
Small optimization to make the foxglove plants to use our sway shader instead of a sway tween.
Safety checks for some rare null refs and out-of-bounds errors throughout the codebase.