Sphere Render Weird when FogColor != White

V-Ray V-Ray for 3ds Max Issues
1

Hello, I’ve got this issue:
There are a sphere and a sunlight in the scene, at first everything goes fine,just like this:

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When I change the fogColor of the sphere’s material, then there are some strange triangles, just like this:
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Here is my material parameters:
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Are there any ways to fix this? Thanks.
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2

Hi, thanks for posting. This is a known issue. We have it logged in our system under VMAX-5943. I will add your thread to it and bump the priority.