This an FYI for folks doing SI work.
My wonderful IT team upgraded all our PC's to windows 10. At that time they change all user names from first intial last name to fistname.lastname cuasing a major headache for my simulation. When I ran a probe of a signal I would get an error message: VIA Model not found. After hours with the India support team and the Canadain team figured it out: The change in my user name changed the path of my temp environmental path, it now had a "." in the path.
We resolved the issue by changing the Path variable to C:\TEMP.
So beware the IT folks, for they do not understand all issues.