Buildings are registered twice

In some cases a building gets registered twice after running the function Fetch Buildings. This happens when under Draw map from terrain model has choosen the drawing setup _Entity type map. This results in every building line beeing imported as 2 lines, and a Hatch.

If this drawing setup is wanted, buildings can either be imported with another drawing setup first, then the rest with the wanted setup. Or one can make a drawing with the wanted drawing setup as an XREF.