Large holes and cutouts in a DXF show up in eDrawings 2020.  Small holes don't show up.  I can open the DXF files with other programs and the holes show up.  I attached a DXF that has a few holes in it.  In eDrawings 2020 you only see the outline.

eDrawings version: 28.0.0.5031 (2020 sp0)