SuperDuper stops on Bootcamp

[fork]

Unmounting Bootcamp fixed it but I never had to do that before.

I re-analyzed what I did to cause the problem.

I had been backing up to a DIFFERENT drive the last two times I used SD and today went back to my original backup on another partition. In between the time of those different backups I had imported a second Parallels VM with an older WIN 7 install to my SSD. My main Bootcamp drive is WIN 10 and its on the internal Fusion drive..

I'm not sure how or why, but Parallels seems to use the mounted internal Bootcamp drive for something even when I use the WIN 7 PVM - despite the fact that Bootcamp has WIN 10. I guess I'm out of my depth on VMs but I'd bet the farm that was the cause of the error. Since simply unmounting the BC drive is easy, I'll stick with that routine in the future.

Thanks!