Curtain Material - splotches

[iacdxb]

Hi,

Having some issue in curtain material while renders.
IR preview is fine in 15 passes, Render screen shot after 50 passes... full of splotches, screen shot attached.
Curtain material also attached.

Thanks.
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[burnin]

set higher bump scale
also note, on windows both (IR & Final) show same result - w/o discrepancy
;)

[iacdxb]

Yes, thanks but wasted 4 hours in renders....!
I think need to fix this bug.

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