When I open my Revit 2013 MEP central file either directly in Navis Manage or Append this central I am missing al lot of objects. Reducers, Tees, Check Valves, and Bends. This is all out of the box Revit 2013 content. No vendor garbage. the model was created in 2013, no upgrades. I am running service pack 2 and updated exporters. What is the deal? I really don't want to, nor should I have to, export to NWC from Revit every time I need to run clash. That is as unacceptable as the objects missing in the first place.