Vray Frame buffer acts strange when Material/Map Navigator is open

The vray VFB disappears and reappears on random clicks when the Navigator is open. once it is closed there is no problems. Also happens with clones of the Framebuffer.
Max 2010 Sp1 x64 + Vray 1.5 sp5

Yes, I’ve noticed this too. It’s as though the VFB were being systematically pushed to the back if the Mat Editor is open when launching a render. Happens to me in Max 2010 and 2011.

yeah, and the weird thing is that its still there, so if you remember where the title bar was you click there and it it kind of appears back (also selecting any objects in the viewport!!)

It used to happen when there are Arch&Design materials in the Material Editor, for some reason… does it happen when using the new one in 3ds Max 2011?

Best regards,
Vlado

I’m having that same issue in max 2009 with the latest vray. well actually its acted like that over that last few service packs. its easy enough to get around, just close the material editor. BTW this is with only vray materials shown in the editor. no arch design ones involved.

V Miller