I appreciate you for providing complete information and a screenshot above, Davep0071.

For now, we have an ongoing investigation about QuickBooks Desktop failed scheduled local backup on Windows 10. Rest assured that our product engineers are actively working to get this issue fixed.

As of the moment, I suggest using the manual backups. You can also use the Intuit Data Protect to back up your files. This service works directly with QuickBooks Desktop to keep your data safe.

To set up the service, you can check out this article: Set up Intuit Data Protect to back up files.

Also, to be notified if the issue is fixed. I recommend contacting our Customer Care Team to include you on the list of affected users and send you an email once the issue is resolved.

I appreciate your patience while we're working on this. Take care.