title: OAuthException code #2 for particular account when using SessionLoginSample
body: <p>We've run into a very strange case in which a particular Facebook account fails on a request to 'https://graph.facebook.com/me/friends?access_token=XXX' after successful login.  After discovering this case in our app I verified that the exact same exception occurs when using the Facebook SDK sample - SessionLoginSample.  After successfully logging into this particular account and granting privileges I return to the sample app and click the test link.  This is the response:</p>
  
  <pre><code>{
     "error": {
        "message": "An unexpected error has occurred. Please retry your request later.",
        "type": "OAuthException",
        "code": 2
     }
  }
  </code></pre>
  
  <p>When I log in using any other Facebook account I get what I would expect - JSON content that lists my facebook friends.</p>
  
  <p>Any ideas on how to investigate this?  Haven't had much luck on the FB support site and it's not even clear to me how to post a bug report to them.  </p>