Hi, in this model the holes for the windows in the wall are missing.

Following errors are shown:

IfcOpenShell IfcConvert v0.7.0-883b8a52 (OCC 7.5.3)
Scanning file...
Done scanning file
Parsing input file took 1 second
Creating geometry...
Done creating geometry (146 objects)
Done writing geometry (146 objects)

Log:
[Error] [2022-02-28 17:23:18] Triangulation missing for face
[Error] [2022-02-28 17:23:18] Triangulation missing for face
[Error] [2022-02-28 17:23:18] Failed to process subtraction:
#17338=IfcBooleanClippingResult(.DIFFERENCE.,#17300,#17310)
[Error] [2022-02-28 17:23:21] Opening subtraction failed for 24 openings
#17386=IfcWall('21rzpr42zDRucuoUobnNC3',#11,' ',$,$,#17268,#17269,$,$)

Conversion took 16 seconds

WallWithErrors.zip

Is there something wrong with the IFC or has OpenCascade problems with it?