Arnold GPU hair color too different from the CPU verions

[mattsketch]

Guys I've this strange problem. The shader (aiStandardHair) I'm using is the same for GPU and CPU but the result in color is correct on the CPU but completly wrong on the GPU you can see some example attached. I've tried both with xgen and Yeti

[Stephen.Blair]

You'll have to increase the Specular Depth in the main render settings.

[daniel2SH2D]

This answered the question I was about to ask, but just to be clear - I had to up Specular Depth to *10 samples* to get even close to the look on CPU.