Pretty sure this isn't supposed to happen.
There are more mistakes like this, mind you, but I am not going to post them all. You should check the passabilities on the database.
Edit: Sometimes I get stuck entering the house.
I do have a question, I assume the key that cat has on its collar is the one we're supposed to get. I have the hook, the branch and yarn ball, but I can't use any of them to get the bedroom key. How am I supposed to get it? Am I missing something? Is the bedroom key somewhere else? I played the heck out of the game until I pressed space on almost every tile lol.