On my iPad (iOS 12.2), I'm trying to update my existing apps. The app store requests that I authenticate with my Apple ID password. It then brings me to my payment information screen, where it asks me to configure my payment method.
I select "None" on the payment method screen, since I'm only planning on updating apps and installing free ones on this iPad for now. After clicking "Done", it pops up the Apple ID authentication box again, which brings me back to the payment method screen, and this loop continues forever. I can't update my apps or install any new apps, even free ones.
In my App Store settings, I have disabled the "Require Password for Free Downloads" setting, but it doesn't make a difference. I can't install or update free apps.