I had the exact same issue, resolved by removing all Tester and Build from the TestFlight as discussed above also (!important) remove everything fields at the App Information - Test Information.
I am using testflight as a beta testing tool for my app.
I have uploaded the build but invitation are successfully sent to the internal testers but no invitations are sent to external tester.
Below image shows both the groups …
Since the recent update to App Store Connect, I can't figure out at all as to how I submit a new TestFlight build for beta review.
Under 'iTunes Connect Users' it says 'Ready to Test', while under 'External Testers' it …
I'm uploaded my app to Testflight and it is working ok. Now I need to deploy a new version in App Store. I readed the doc, but ITunesConnect has different user interface and I'm not sure how I can to …