I highly suggest you follow the guide above, and then delete the persistent data in the game file as well. Open the game file, game, saves, then delete the persistent data there. It should work after that.
Im not sure if this is correct, but when I count I end up with three bad endings for Leon. (Vespa?, You became Vespa, and You don't Love Leon anymore.) I'm not sure if Vespa? Is a ending. Please correct me if I wrong.
