Hi! I bought the game yesterday and I've been enjoying it so far. I do have some bugs to report:
[SPOILERS]
1) Leaving the room in the early part of death's monologue after returning his head caused the cutscene to be cancelled, without the head reappearing in its original spot (similar to the previous bug - the save file fix thankfully worked for this bug as well).
2) Trying to complete the wall jump challenge in the room under where Delphi is frequently caused me to clip through the floor in the room above, placing me right next to Delphi. Not only does this let you reach Delphi excessively early, but it also makes collecting the ore the challenge is supposed to be for really annoying too.