Frame buffer problem!

[cdavis]

So im working on a job and cannot get the vray frame buffer to show up & it's really annoying! if I then load up a scene using a different renderer the frame buffer then pops up! ... go back to the scene using VR & it goes again. I restarted my machine & it fixed it , but 30 mins later it's gone again ........ anyone have any ideas on why this would be happening & how to fix it ?

Thanks

[yolov]

Was it by any chance minimized when closing the scene? If yes, it's a known bug and it's already logged to our bug-tracker. You can verify this by querying its position when it disappears by running the below lines in a MEL tab in the script editor:

vrayShowVFB;
window -q -topLeftCorner vfbPanelWindow;

And if it shows really weird number, edit its position like this:

vrayShowVFB;
window -e -topLeftCorner 1 1 vfbPanelWindow;

[cdavis]

Thanks, it seemed the VFB was hidden in the scene being referenced. once i fixed it in that scene, it seemed to work ok in the main render scene.

Thanks

[t.petrov]

Can you reproduce the problem again if you revert the modifications you've done in the reference scene?

[hsz]

This is happening to me in a new scene with some elements and nothing Reference, its very annoying.
Even if I exit Maya and re open it.

Maya 2016.5
Vray 3.4.03 Stable Nightly Build from July 19th 2016
Windows 10

This was happening before as well before I changed to this new Nightly Build.