adventure editor, idiot npc's can't follow patrol routes

I lost my temper trying to get the retarded npc's in my adventure to follow a simple path in the shape of a square around a square shaped room with a square collumn in the center. every test run, the npc immediatly tries to walk through the column. ive tried adjusting his route many times keeping with the same square formation but the npc wont follow the path.

help me solve this before i hurt someone. i am so angry.