[3Ds Max] v-ray Baking trouble.

[ToriBlack77]

Got strange issue when rendering to texture in vray. In picture below i mark with red what i mean.

Right side is model, baking all perfectly except this little sphere. In UV map you can see its nice rectangle map. But in alpha channel(and in all channels) its not rectangle, its jagged edge middle part only.

I tested many options. Checked UV, changed it 10 times different ways and shapes. Same thing appear anyway. I remodel this part few times. Added sphere and connect = same thing. Model sphere roughly by hands = same thing.

Thought maybe its because ring overlapping with sphere. so i moved them apart... same thing. Model is clean, nothing overlap, no doubles.

BUT! In Blender, all baking perfectly. AND in mental ray(2nd image below) its also baked perfectly(as rectangle, no jagged edges). So trouble is in V-Ray only.

I was mad and change all all all settings in v-ray setup i could find, many times. same thing. So im totally confused. Please help...