Export IFC - IfcWall and IfcWallStandardCase

**Hello,**

**REVIT 2020 & IFC 2X3**

I am working on revit and when creating the IFC model, I have two IFC categories at the wall level.

IfcWall and IfcWallStandardCase

The problem arises on the data made available by IFC for IFCWall

IFCWall does not give access to "BaseQuantities" unlike IFCWallStandardCase

My question is, is it normal not to have these elements in the IFCWall

Even if we force the classification in "IfcWallStandardCase", we don't find the "basequantities"
Is this a problem with the IFC REVIT export engine?

**Thank you in advance**

**SD**

The issue names no repository files or tests. Start by locating the IFC 2X3 export paths for IfcWall and IfcWallStandardCase, reproduce the Revit 2020 case, and compare whether BaseQuantities are emitted; done means the behavior is explained and a focused regression test or documented limitation is identified.

Written by the indexing model from the issue text.