A few days ago I migrated my purchases from my secondary AppleID to my primary. One of the requirements was to stop testing apps in Testflight. I stopped testing in the app as directed. After the migration I am not able to rejoin my testing app. It says it is connected to my secondary ID and I need to sign in with it. The whole point of migration was to not have two IDs for iCloud and Media and Purchases. I have no intention of signing in with my other ID, it's impractical. How can I get TestFlight to relinquish the secondary ID?
Developer sent a new invitation but to no avail. Deleted app and data, reinstalled, to no avail.