Dump VFB not working

[iMotion]

Hi!
I used A6 and for some reason can not use dump VFB function. I tried to push in realtime when rendering are in proccess, tried with pushed PAUSE button, but the result the same. "Dump VFB" button didn't work at all. I also tried PT+PT & PT+HD. All the same.
Can someone help?

Thanks in advance

[romullus]

Works perfectly fine here. Does this happening to you in all scenes or in particular one?

[iMotion]

In every scene ((