iTunes "Back Up Now" greyed out
Latest iTunes (12.10.3.1) and iOS 13.3.1 on iPhone SE on a windows 10 computer, and the option to backup manually, to the cloud or "this computer" is greyed out.
Also, when iTunes is showing my phone's contents, the bar at the bottom of the page shows one long yellow "other" instead of a separate percentage for photos, music, apps etc.
Any clues why?
iPhone SE, iOS 13