My 3D default view now shows nothing! I have a large project that has worked fine until recently. The camera shots still work and all my drawings are in tact, I just cannot look at my building in 3D orbit any more because the screen is blank. Tried ZA, Zoom to fit, nothing hidden. Any ideas?
Fixed it! After I went to View Graphics and turned off the imported CAD links from a metal building supplier I could see my Revit model! I have had this problem once before when I was tracing a CAD file (DWG) with Revit and then could not see section cuts because apparently the CAD had some 3D to its own file that was blocking Revit. After I turned off the CAD file I could see the Revit. Did not try deleting the default 3D viewport, but it may have worked. Hope this helps others. Anyone ever had this happen to them?