title: TestFlight validation error when submitting to beta app review
body: <p>I am trying to submit my app to beta app review through TestFlight in iTunesconnect. Ive been trying to do this a couple of days now but its just not working. First couple of days the progressbar was just spinning, and now it says "Validation Errors". </p>
  
  <p>In the final step where im trying to submit the app, it just says "Validation errors". Not really helpful. Any idea what could be wrong?<br>
  <a href="https://i.stack.imgur.com/nwM6w.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/nwM6w.png" alt="enter image description here"></a></p>