title: In App Sandbox does not work IOS Simulator - Flutter
body: <p>I am trying to test my flutter in app implementation.</p>
  
  <p>In itunesconnect->Users and Access->Testers (<a href="https://appstoreconnect.apple.com/access/testers" rel="noreferrer">https://appstoreconnect.apple.com/access/testers</a>), I added one sandbox user.</p>
  
  <p>Then I launch the IOS simulator from Android Studio. Going through the steps to sign in, I always cant seem to sign in.</p>
  
  <p>Could Not Sign In 
  User name or password is incorrect</p>
  
  <p>See the screenshots - <a href="https://imgur.com/a/lE2RiCp" rel="noreferrer">https://imgur.com/a/lE2RiCp</a></p>
  
  <p>I know the username and password is correct as I am able to sign in into apple id site (<a href="https://appleid.apple.com/#!&amp;page=signin" rel="noreferrer">https://appleid.apple.com/#!&amp;page=signin</a>)</p>
  
  <p>How can I resolve this sign in problem or what should I do to test (sandbox) in app on ios ?</p>