Can't add Internal Users to my TestFlight Build

If I try to add internal users to an TestFlight build, i get the error in the attached image.

Furthermore invitation links for TestFlight users, take over an hour to get sent.

Answered by xIceFox in 745617022

Is fixed now. Works fine again.

Same for me I uploaded app to testflight, I release the app but it doesn't accept any internal test groups

Accepted Answer

Is fixed now. Works fine again.

Can't add Internal Users to my TestFlight Build
 
 
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