Hmmm... That's weird! Could you give me your savefiles? They're in AppData/Local! I'll test them!
Also, not sure why you cannot put your game in Fullscreen... Have you tried changing the language of input? It can be a factor sometimes
Viewing post in Elizabeth SLAY!!: Remastered comments
Sure, my first save is the one that's almost complete.
https://drive.google.com/drive/folders/1GwWpBL1SfsGvfU9BxpW01gCrvKM8aVpE?usp=sha...
Also language of input? How would I change that? And what to?