Revit IFC does not export contour cuts. Any suggestions?

[robert.sandborg]

Hi,

Revit 2020 does not export my contour cut on steel elements to IFC. I have tried many different export setups and detail levels. I have also made sure "modifiers" are set to *IfcBuildingElementProxy* in export options (contour cut being a modifier), all to no effect. 

It exports other modifiers such as shortener and Cope Skewed just fine.

It works perfectly in Revit 2023, however this project set to Revit 2020. 

Any suggestions as to what might be causing this issue?

IFC Model

Revit Model

  

Best Regards

Robert

[L.Maas]

Have you tried with or without the latest IFC Addin?

Consider uploading (a small part of) your project so we can look what you have and do some testing.