Ok, so Ive figured out on my own that the walls with doors will operate if both ends are floating off in space as it was or if they were placed end to end and the other ends are hanging off the map. However when I try to block off a section of a room with these and have them cross the doors wont work.
So my question is; What EXACTLY are the rules for the doors in a Wall - Door to become active?
Uh... doors that operate are the ones listed with a description that "this door opens and closes" or something along those lines. It should have nothing to do with where or how they are placed, as far as I am aware. Check the object description for more details.