I have a project using Revit 2011, and our company has all series of Revit and Navisworks product from 2011 to 2013.
When I transfer the Revit 2011 file into Navisworks 2013 file, some of the instances lost some of their element properties. I do have check the "Convert element properties" and "Convert element parameters - All" in the Navisworks settings before transferring.
I have also tried using other version of the software or open the revit file direcly in Naviswork 2013, but none of the methods work.
Is there anything I am doing wrong? The file is attached.
I checked your file and I think what you need to do is change the "selection resolution" of the fitting when you select it. I first got the same amount of properties you show, with the "selection resolution" set to "Last Object". I then changed to "First Object" and receive alot more data. Right-click on the fitting to set the "selection resolution".