Adding External Testers shows No Build Available

I am trying to add testers to External Tester groups for a couple of our iOS apps and after adding them it shows "No Builds Available". This is despite the app being available to that External Tester group with other people having already installed the latest version of the app which is "Available" and not expired.

Can someone please fix this? It is so frustrating the number of times I try and release apps to TestFlight and there's some issue blocking me, completely out of my control and I have to rely on someone at Apple fixing something on this terrible AppStoreConnect system.

I am also experiencing this issue. Is there any known workaround or alternative solution available?

Same problem here.

Same problem here. All builds in the list are approved by apple for an external group. I've removed and re-added the user and still says no builds available. Stumped

You are using a wrong email address for TestFlight. That's probably why. I mentioned that a few months ago somewhere. Being new is one story. Not reading old topics to catch up with others is another.

Adding External Testers shows No Build Available
 
 
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