I select an existing room in awmhhi01a-3_inkl_IfcSpace.ifc.txt. As soon as I switch to IFC Edit Mode via the menu, I get the message “Geometry changes will be lost ...

Thanks for your sharing, but Sorry， I Just face this errors when i run COS: Python: Traceback (most recent call last): File "C:\Users\Phoen\AppData\Roaming\Blender ...