I want to use Viktor IFCView to display my IfcSpace objects. However, in the demo file you shared, there is a note stating: ‘Make sure that your file contains IfcElements with a geometry representation.’ IfcSpace is not an IfcElement but an IfcSpatialElement, although it has a geometric representation as an IfcSpatialElement.
Edit: While exporting in IFC 2X3 no problem. When export in IFC4X3 no 3d visualization