The IFC-file (a BIM model) was imported into a DGN via the "import cad-file" under the file-menu. I've attached a zip file with two screen-shots, one from ss2 and one from ss3. I doesn't matter if I import the IFC or get an i.model exportet from revit with the same data. The ss2 will show me the items, the ss3 will not.
-Stian