Hi Jens, Publish to Tekla BIMsight functionality is not yet updated so currently when Tekla Structures models are published, they need to be converted to be compatible with Tekla BIMsight 1.3. As a workaround, you can export your Tekla Structures models to IFC and then add them to your project in Tekla BIMsight. By using this approach, there is no need to convert files to a newer format. BR Heikki