Okay, found the AI for the NPC and turned it up to HIGH, but NPC still won't transition to a certain area. He has transitioned through 5 other areas before this one, but just won't open the door and go in.
The problem door was originally locked, but he had the key-so I changed it to unlocked and still same problem.
The door was a custom door and not a standard toolet door-so I replaced it with a standard unlocked door(just like 3 of the other transitions the NPC has already made), and still same problem.
I shortened up the trip, and the # of waypoints, making this transition the second one and still same problem.
Does anyone know if crossing areas for NPCs might have anything to do with the actual 'coordinates' of the waypoints in both areas?