I'm an admin on my site and when I restore courses, the automated backups work A-OK. But today one of our five people with a site a Manager role tried and got a nasty error message about the file not being found. I checked it and it started up just fine for me.
I didn't think much of this...just trotted over to the role permissions and checked them out. sure enough, Managers were not allowed to restore courses from automated backups. I allowed it, saved and checked it out. New error message: error/invalidrestorefile. I couldn't find any other settings that would interfere.
Any ideas?