This problem with the new 1809 version is not connected to OneDrive.
I didn't have a problem to backup in 1803 version where OneDrive users have had.
I don't even use OneDrive. It's not in the task tray, and when I open it, it's not even connected to my account.
It's a new bug introduced in 1809 and nothing I tried can fix it.
I really hope Microsoft will fix it.