I just built a training center at the quickbuild station next to the mosasour stadium and about half of the door switches on the walls dont work so you can trap yourself in the "pen" for the dinos. Also because they dont work from both sides the baby dinos escape through the doors. I found this the case for the "people" sized doors on the sides of the pens, the inside swiches wont control the doors. Also the switches that are inside to control the dino sized door from the individual pens to the big pens dont control anything.