IFC-Export - Errors in Polyloops

Hi,

I’m exporting IFC2x3 files with GeometryGym (great tool, btw!). When checking the resulting IFC, I see some errors with IfcPolyloops, as there are polyloops, which contain the same vertex two times. Furthermore, there are IfcPolyloops, which consist of only two vertices.

Is this a problem with drawing accuracy? To help my understanding: is all Rhino geometry converted to mesh geometry in the export?

If useful, I can share the affected Rhino file (privately).

Thanks,
Marco