Hi! I'm Fabio from Italy.
When I try to mirrow a polynurbs element, it automatically disappears, and i'm not able to visualize the polynurbs anymore, unless i enter into the polynurbs command.
The weight of the polynurbs is 0 kg, so I can't analyze the polynurbs, or export it into other CAD.
I'm using the Beta version, Inspire 2016 5338.