I got stuck by a P2P door in a dungeon, not permeting me to finish it. I know Jagex said it isn't possible, but I'm sure of it. There was 2 locked doors, and the P2P door left for me, and I had a key not corresponding to any of the doors. To be sure I didn't pass by a key without seeing it, I picked all the items in all the rooms, and sold them, leaving all the rooms empty. So I had to restart all from the begining, it's already pretty anoying to not be able to get full room bonus in some dungeons because of P2P rooms, but it's even more anoying when these sort of bugs occurs.