title: Apple TestFlight (beta) app won't install
body: <p>We have been using Apple's TestFlight facility to distribute a beta version of our app for a few months now (migrated from the older TestFlight service before it was merged into the AppStore). Things worked smoothly until today. After uploading a new beta build to TestFlight, the app no longer installs on the device (iPhone 6 with iOS 8.3).</p>
  
  <p>When opening TestFlight app and tapping "Install" to install the latest beta version of the app, TestFlight downloads the app, but when the installation completes, the app icon vanishes. The button in TestFlight app changes back to "Install", but tapping on it shows an alert: </p>
  
  <blockquote>
    <p>"Could not install [app name]. The app is currently downloading"</p>
  </blockquote>
  
  <p>We've tried:</p>
  
  <ul>
  <li>Restarting the phone</li>
  <li>Resetting all settings on the phone (factory defaults)</li>
  <li>Upload a new build to TestFlight. </li>
  </ul>
  
  <p><strong>This looks like an issue with iOS 8.3.</strong> 
  Installing on devices with earlier iOS version <em>did</em> succeed: </p>
  
  <ul>
  <li>iPhone 6, iOS 8.1.2 </li>
  <li>iPhone 4S iOS 8.2 </li>
  </ul>
  
  <p>Has anyone encountered this issue and found a solution? </p>