test flight downloads not working on new iphone

one of our testers got a new iphone13, hooray! but he cannot download apps in test flight anymore. the spinny thing shows then disappears. any ideas?

TestFlight and AppStoreConnect are pretty flaky right now. Builds took several retries to upload (first 3 tries resulted in some generic error), and the uploaded build does not even show up on AppStoreConnect.

update: user can now download the app (we get the download progress meter and it proceeds) but the app disappears immediately after download and instead of the Open button showing in test flight, it goes back to the Update button. so still no-go.

now the test flight downloads seem to be working again. strange.

test flight downloads not working on new iphone
 
 
Q