Hi, We are also affected by this TestFlight issue. The build is visible for internal testing, but when testers tap Install, TestFlight says: “The requested app is not available or doesn't exist.” We already checked the usual things and even tried creating a brand new app record, but the exact same problem still happens. It looks like many developers have run into this before. If anyone has a confirmed solution, please help share it. Was it: an Apple/TestFlight backend issue? an account/app distribution state issue? something Apple Support had to manually fix? Any real experience would be greatly appreciated.