So whenever I open a door my followers will just stand by the door and won't move at all. the only time they move is when I open a door to get in building or a room. Can Anyone help? Also My followers won't go in the arena with me.

I have a similar issue but worse. My followers won't follow me at all. I'm all by my lonesome wherever I wander and then when I get into combat, like 5 - 10 seconds into it, they'll suddenly spawn and help fight and the will be gone again afterwards. They also will not join me in the arena but Vasco will shoot enemies from wherever he is hiding.