Volume fog renders differently on nodes when using DBR

[DPS]

Hi, I'm having some issues with volume fog with in interior scene. I've applied a black override material in global settings, and within the black material I have made only my glass transparent and reflective.

My scene is rendering fine using DBR for the main render, but I want to render a fog pass which currently is rendering lighter on the DBR nodes.

Any ideas how I might diagnose this issue? Vray 3.5.04

Thanks

[Svetlozar Draganov]

Would it be possible to send us that scene or a part of it for investigation?
Let us also know if other bucket discrepancies exists, like in other scenes etc.

Make sure also that all the machines have the same software and plugin setup, even one missing plugin or version mismatch can cause such issues.

Looking forward to hearing from you.