Vray GPU bug - vray env fog not working in RTX mode

[squintnic]

As in headline fog rendered as vray environment fog using a gizmo and a handful of vray disc lights renders fine in CUDA mode but doenst show up in RTX mode.
I'm using 3dmax 2019, service packs up to date with current Vray 5. tested with a 2080 and 3090

Doesnt make a huge difference on this scene in render time but isnt expected behaviour.

[hermit.crab]

Could you attach the scene here or send it via the contact form so we can take a look? Mention this thread in the message.