Thanks for the response Eric,
I was getting the errors in pretty much every scene I tried. I mainly work with DAZ/Poser content if that helps.
The errors start popping up when I switch from the render room to the assembly room, or vice versa.
The errors are consistent  in C7 and C7.1. (The latest build)
If you can't duplicate the problem on your end, I'll reinstall the plug-in and put a scene together for you.
Thanks!