In the inserted picture. The single swing doors on the 2nd and 1st floor are the same block. While the ones on the second floor came as X-ref with the floor, the ones on the first floor came in with the first floor also as an X-ref within the floor.
In the origins files they render Ok. In the X-ref drawing the ones on the first floor do not render(door frame renders well but door itself renders as white) well. Why?