Imported *.dxf has extra hatches

building volumes.dxf (19.6 MB)

building volumes.dwg (5.2 MB)

Dear community,

Whenever I import this file in rhino 7 it produces 35751 hatches instead of the 35725 objects in the dxf file. If I convert it to a dwg, I run into the same problem. The excess of hatches is shifting the heightdata (in my csv) which I aim to connect in grasshopper, as to create building volumes. Does someone know why these extra geometries are created and how to solve this?

Help would be much appreciated,

Thanks,

Lance, architecture student.