VRayEnvironmentFog vs. animation

[abri]

Is this normal, that the fog effect animates between frames - when there is absolutely no animation in the scene?
I cannot find any seed value in the dialogs, so where does this "fog animation" come from?
Or is VRayEnvironmentFog not supposed to be used in animations?

[Miro]

Can you share a part of the sequence or send it to support[at]chaosgroup.com so we can get a better idea of what the issue is? Please mention this forum thread if you drop us an e-mail.