If I drag the VFB on my 2nd monitor, maximize it on and then hit Render, the VFB window shrinks and moves to the left towards my main monitor. Is there a way I can stop it from doing so or is this a bug? I’m using the latest official version of Vray (check signature).
We have to fix it. A temporary solution will be to resize the VFB manually to fit ~90% of the screen.
Our developers managed to fix this issue and most probably the fix will be part of the next official SP release.
Hurray! 
The problem still persists with 3.30.03. 
Hopefully the bug fix makes it in the next one.
It works fine in my test here with 3.3 and Max 2016 - SP2 (no Extension). It might be a problem with this update.
Could you please check again on a new empty scene ?
Hmm.. that’s strange. I swear yesterday I still had that problem but now I did some tests and can’t make it reset. Maybe there’s something that triggers it. I’ll have to pay attention when it happens again and figure out what causes it. I’ll keep you updated.
Thank you for the update Alex.