Replace Component for Drafting

Hi ,

im a bit desperated. In NX11 with TC 11.2  i wanted to replace a component below my drafting. i read a bit in the forum and found out something has changed, a lot of workarounds but none worked for me.

So i try to explain with the example i made here

Base Drawing

No i want to replace the Component. So i selected the *160 3D modell Part an made right click, replace component. 

Replace Component over context menu

I Browse for the New Component ( or opend it before and select it makes no difference) and select it

 then i recive this massage all the time, even if i change any setting it makes no ******* difference

Message of hell

I dont know what i do wrong... Even the NX help does not provide me any solution.

Even if i do it in the modelling , drafting. if i made a new part, a saved as from the previous... evrytime the same ....  even another revison is not working.

Any idea where i can learn this function... because in the past it worked fine. Never change a running system.