Got a bug involving a save, in the Black Cove. I initiated conversation with the ghost dude in the house near the source-beast-thingemabob. He told me the room will explode when I tried to move.
I ended the conversation, didn't move, and saved the game before continuing. I exploded, so reloaded the save. Now, every time I load that save, the room explodes as soon as it's loaded.
Filmed it:
http://youtu.be/zXqV2hyUc3E

I think the progress is wrongly saved somehow.