I have a problem with hatch command that I'm convinced is related only to one file. When I select a boundary to apply a hatch pattern, the enclosed boundary turns white and there is no hatch pattern. This happens no matter what I try within this drawing file. When I open a new drawing, hatch works normally. I even tried cutting and pasting the geometry to a new file and same problem. So it seems there is something within the settings for this drawing geometry that is causing the problem. Very baffling.