title: Testers all show up as anonymous user
body: <p>Why do all of my crash logs show anonymous user when all of them have a testflight account and I'm setting the uuid in the test flight initialization?</p>
  
  <p>in my singleton:</p>
  
  <pre><code>#define kTestFlightTest 1
  </code></pre>
  
  <p>in application initialization:</p>
  
  <pre><code>[TestFlight takeOff:kTestFlightToken];
  #ifdef kTestFlightTest
      [TestFlight setDeviceIdentifier:[[UIDevice currentDevice] uniqueIdentifier]];
  #endif
  </code></pre>