TestFlight issue when removing then adding testers
<p>Using <code>iTuneConnect</code> and <code>TestFlight</code>, and for a given app I defined my '<strong>app internal testers</strong>' team.
All worked great for the last 6 weeks: I publish a new build for the app and everyone get notified and able to install and test the new app.</p>

<p>This morning, I wanted to publish a <code>TestFlight</code> version only for myself (to make sure the build is not broken). What I did:</p>

<ul>
<li>I removed temporarily all app testers, except myself, from the App
internal test team (not from the global users list).</li>
<li>I published the app and could install it without problem.</li>
<li>I re-added the testers to the 'app internal testers' team.
After that, i published twice new builds but no one except myself was receiving any notification or able to see the new build on <code>TestFlight</code>.</li>
</ul>

<p>Any help on how to fix the issue above is appreciated</p>

<p>UPDATE1: One tester reported she is receiving 'The invitation has been revoked or invalid. Please request a new invite from the developer'</p>

<p>UPDATE2: After trying few times (more than once), to delete the testers and then re-add them again - All this using 'Admin' account (not 'Application Manager' account)- finally things started to work again for the testers. Strange. I personally have no explanation and will do my best NOT to delete any tester from an app. </p>