V-ray doesn't render parts of my model

Ultimatez 32

Hi, the v-ray for sketchup that I have doesn't seem to render the whole model, but basically around 9/10 of it. Can I fox this? Maybe images can talk better than I do......
SU View
V-ray render...the wheels doesn't render
truck.skp

thomthom

What version of VfSU do you have?

There's a SU bug with groups that makes them not render all the time.
In the old version the only fix was to explode and regroup. In the new version all that's needed is to re-open the file.