Vray textures not applying to the model

Hi guys I have a problem with my vray and sketchup, when I choose a vray texture to apply to my model it simply doesn’t do it. Sometimes it goes with some textures, but mostly it does not.
I choose the texture, add to the material lists in vray, then click right to apply to selection but it doesn’t go to the selected object nor show it on the material list of sketchup.

What do you do differently when you apply the material and it doesn’t work?
Which material doesn’t work?