Bucket noises when using Vray Environment Fog

When using VrayEnvironmentFog we witnessed strange artifacts which show bucket areas.

It’s not the GI as far as I can see it … And we are not within the gizmos for the fog even …

Best, Peter,
xoio

Edit: I just tried in progressive mode, it’s still there …

Is there some kind of geometry there? Are you using a gizmo for the fog?

Best regards,
Vlado

Hi,

Yes, I use a HiPoly-Ball, which is modelled to simulate some Cloudshape … and a noise-fractal in the density to break up the cloudshape. The Geometry is set to not renderable in the properties …

The scene is fairly small, if you want I can send it over … ?

Cheers, Peter

Edit: Attached Screenshot:

Yes please - send the scene either to support@chaosgroup.com or attach it here in the forums.
Thank you very much in advance.