VRay for Rhino - Render Issue

Hallo Everyone,

I have a question about Vray for Rhino.

I have a mesh, simulated with Grasshopper, if i Render with the Rhino-Render i see the right colour (see attachment “Basic”), but if I render with Vray, I see the mesh with the basic material of his Layer (see attachment “Vray”).

How can I render the Mesh with Vray, who i see the right coloration out from Grasshopper?

Best Regards