I am defining a hospital and having patients arrive from parking lot elevators (represented by locations). I have defined an enclosed, limited building space that guests and patients can travel to get to registration, a first floor clinic, and other elevators in the hospital. My issue is that the AStar boundary grid can't seem to identify the enclosed area as spaces for traveling. It tries to take the patients outside and around the grid (and I can see that it does not want to recognize the enclosed area for traveling). Is there something that I need to do to designate the enclosed area as the travel space?