Strange shadow when render with vray

Extending SketchUp V-Ray for SketchUp
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Hello, I am having issues with strange shadows while rendering. Can someone please explain what I do wrog? So frustrating

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Could be an issue with Reversed Faces. Usually is when materials don’t render correctly. Switch your Face Style to ‘Monochrome’…and share a screenshot here. There should be no Blue or reversed faces showing.

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I believe that perhaps the fault lies in an adjustment and configuration error.