In the tutorial quest for Elsweyr (Bright Moons), when you first spawn in the starting room, I got stuck between the wall and a lamp on the left side of the room when you are facing the door. I was unable to get unstuck, so I used the stuck command. This placed me outside of the starting room, and as I had not yet collected the letter/key, I was unable to go back into the starting room.
I got around it by deleting and making a new character, but not exactly an ideal experience when I spent an hour making my character -_-