title: Cant Publish Xamarin.iOS app to TestFlight
body: <p>So I have gone back and forth for 2 days trying to publish my application to TestFlight.</p>
  <p>Publishing via Transporter shows success
  <a href="https://i.stack.imgur.com/xrcoZ.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/xrcoZ.png" alt="enter image description here" /></a></p>
  <p>Publishing via Xcode shows success
  <a href="https://i.stack.imgur.com/ug6nu.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/ug6nu.png" alt="enter image description here" /></a></p>
  <p>Publishing via Visual Studio for Mac throws this error
  <a href="https://i.stack.imgur.com/W3sg6.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/W3sg6.jpg" alt="enter image description here" /></a></p>
  <p>Yet when I go onto <a href="https://appstoreconnect.apple.com" rel="nofollow noreferrer">https://appstoreconnect.apple.com</a> I don't see any build?
  In fact sometimes its visible shortly after uploading (as processing) then it disappears
  <a href="https://i.stack.imgur.com/LzQsY.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/LzQsY.jpg" alt="enter image description here" /></a>
  <a href="https://i.stack.imgur.com/dblf6.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/dblf6.jpg" alt="enter image description here" /></a></p>