ContribucionesMost RecentMost LikesSolutionsRe: iPhone App Looping Issue Possibly stumbled on a solution. Set up Face ID while logging in to a iMessage chat with T-Mobile support. Next time opening app, Face ID logs in and everything works fine. Re: iPhone App Looping Issue iPhone 15, reinstalled, cleared cache, nothing. This second level sign in to the bill freezes upon entering anything in the password field. No VPN, on T-Mobile cellular data. Odd, and a fairly recent development in the past month or two.