This is a Creo 2.0 M040 part. There is no reason to believe this will work on future releases as it is likely a bug.
But... for the meantime, I found a way to change the color of half a sphere with basic Creo render. If you ever -tried- to do this you know what a pain it can be.
The idea is that the color is applied with the sphere only revolved half way 'round. Change the color of the solid body and then apply a different color to the hemisphere. Then change the revolve to 360 degrees. Whallah!... you now have two appearances on a contiguous spherical surface.
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