title: iOS Development vs Production App Facebook Login Issues
body: <p>I’m having issues with using Facebook login with my iOS app. I have everything working perfectly, but when I deploy the app for review or for use with TestFlight, the Facebook login suddenly stops working.
  As soon as I make a request to FBSDKGraphRequest I’m not getting any further feedback from the app. It doesn’t crash, but nothing within the block is executed; there isn’t even an error thrown inside the block that I can read. And I can’t debug it much because it only happens with the production version of the app.
  If anyone knows anything about this I would greatly appreciate the help. I’ve built my entire app and I’m stuck with this issue and I have no idea how to overcome it.</p>