problem in vray blend material

what are these colors ? please somebody help me. i wanna understand that is a bug or something else. i used vray rectangle light and vray blend material.

Hello,

Can you try to describe you problem more thoroughly?
Here Chaos: Industry-leading design and visualization software you can find the whole documentation for V-Ray.
And here Chaos: Industry-leading design and visualization software is the documentation for blend material.

/Teodor

this is the image.