Invisible second floor - help requested

Yesterday I finished building a church with the second floor being of the balcony on three sides variety, a common feature in old New England meeting houses/churches. When looking at it in play mode from its own level all is well, but when down on the first floor if the camera angle is pointed up all I can see are the ceiling areas under the balconies. The half walls at the edge, the main walls, and ceiling are all missing, nothing but blue sky. Not only does the second floor have its own ceiling, but the structure is roofed. Not only was game set for walls up, but to show roof as well. There is no difference whether the tab key has been hit or not. Is there any way to make the second floor have a proper looking up to it view? This really limits picture taking, not to mention being a serious immersion breaker.