Thank you for playing! We had the idea to put some text on screen when trying to open a door to tell the player its locked but ran out of time to add it. The bug you had with going into a room is based on the speed you enter and can be a bit random, the hitbox is a little short to check if the player is going to go through the portal and thus if you go to fast you can just miss the teleport and fall through. Thank you for the feedback!