The problem isn't in your backup procedure. The thing is that File History, Backup and Restore, and System Image functions in Windows 10 are partially broken or unavailable. At this moment, Microsoft doesn't maintain them anymore and plans to remove these features completely.
That's why they are advising users to get a third-party backup and recovery tool. I would suggest something like NAKIVO Backup & Replication as it is a reliable and comprehensive solution.