make a rectangular surface 10x10 in top view.
And now assign a material from library to it.
Also see the good looking material preview.
The preview in Rhino is very dark:
The object displays fine:
Now let’s change the mapping.
Let’s try to rotate the grain.
Also no effect with all the other controls.
In V5, e.g. UVW rotation W=90 displays immediately.
What is going on with mapping?
Seems not ok to me.