iPhone/iPad app store - Verification Failed. There was an error in connecting to your Apple ID
Since iOS 13.5.1 update every time I have app updates on my iPhone x 2 and iPad x 2 the app store keeps saying "Verification Failed. There was an error in connecting to your Apple ID" then it requests my Password which fails.
However if I delete the app and go to download it again, it is if I have never downloaded it before. In other words there is no cloud symbol there. The password works and the download works fine.
I have signed out of my iTunes & App Store account and restarted routine. I have signed out of my Apple ID account and restarted routine. ALL 4 iDevices are signed in using exactly the same Apple ID. All family sharing uses exactly the same Apple ID. This Apple ID has not changed in years except for that strange thing that Apple wanted me to change, years ago, my old @me and @mac icloud accounts to just @icloud.com which I have had since those requests years ago.
It is as if my past app store ownership history has disappeared. Looking at my purchase history all my history is there EXCEPT for 2019.
Though app's downloaded previous to iOS 13.5 are there. But app's downloaded, say, in 2018 and early 2020 that require updates post iOS 13.5.1 still want my password which fails.
All very strange. Any help appreciated.
iPhone 7, 13