I have the same problem of Bob James with Sketchup 2013.
What can I do?

Thanks TIG.
I've already disable Vray and it works fine.
I didn't know it was a Vray bug.
So I'm in waiting for their next beta release to check this.

The plug-in doesn't work with the new version of Vray for Sketchup 1.6.
Can be fixed this bug?
Thank you

Simply the best!!!

Very good application.
I have a only one problem: when i do a render animation with vray it starts slowly and i have to wait a long time.
This happens only with a simple cube
Anyone have this problem?

Great work!!!