Hi Zsolt,
Thank your for your follow-up!
I asked the Architects to provide some IFC files for testing.
IFC #1 shows that the 2 walls which are classified under IfcWall creates the “bug”: Walls in Revit have no type - only the ones which are falling under IfcWall. Additionally, the Doors which are connected to these walls, are not visible at the reference floor, but they are visible on the floor below – quite odd behavior.
In IFC #2 architects remodeled one wall, which somehow became IfcWallStandardCase, after their export. After this change, that specific wall and the related doors work fine.
The 1st outcome of this exercise is that Architects can probably resolve this issue by changing their model - if they have enough HR workforce to make this happen. But 2ndoutcome is still that Revit has some problems with IfcWalls.
Zsolt, could you pass the IFC files to the IFC development team to, to find out, whether it’s an export problem of Archicad (in this case there are some bugs in the IFC itself) or it’s an import problem of Revit as it can’t process IfcWall class properly? Our annual subscription for updates was terminated last year, therefore I can’t raise a support case. Your help would be very appreciated!
Bests, Peter