I have installed an app successfully as an internal tester. Now the app is ready for external testing, and has passed Apple review. In the email received from Apple, I clicked the Open in TestFlight
button, which opened the TestFlight app and displayed the app details.
Clicking the INSTALL
button fails with the following alert:
Couldn't accept the invite
You've already accepted the invite for this app.
OK
The message does identify the problem. Any ideas how to resolve it?