Nested families Revit - Navisworks - Attributes

revit

#1

Dear all,

i have a problem with revit and navisworks. There are some nested families in my revit file. After opening this one in navisworks the geoemtry of the families are broken/exploded. Some Attributes (Types) are also not transfered.

Any Ideas?

Thanks in advance!

By the Way: Revit 2017