Issue when rendering with V-RAY

Hello everyone,

When I go to render my model, for some reason the final render comes out full of lines and very grainy. This has never happened before. I have checked the model and all the objects are clean poly-surfaces (no mesh),

I hope someone can help me. I have tried contacting Chaos Group but they are not responsive

Be sure to move the model to origin and the scale should not be too huge or too tiny.
If that wont work copy geometry from rhino and paste on other new rhino file.

This is the tolerance issue.

thank you Petras, it seems to be working fine now.