"[DisconnectedItem]" by start of applications view (MVVM)

Aug 2, 2013 at 11:48 AM
I have a strange problem: I using the NavPan with MVVM. It works - but not from begiining.

If I start the app then I can see the bottom categories - but all of them have the same caption and some have "[DisconnectedItem]"

If I hide all categories and reshow the categories with the splitter then the captions are correct.

Can someone give me a hint was the problem is?