This is a snapshot of a polygon in arc catalog, in preview mode. Even when brought into ArcMap, it won't display the polygons that are in the white space until you zoom in to an extent of 50,000 or less. I looked and there is nothing in the data frame properties to cause this and the scale range for this polygon is set to show layer at all scales. There aren't any definition queries either that would only display geologic units of certain types. Any clue on how to bring these polygons back from the void?