title: Game Center Can't Load Photos for several player IDs
body: <p>I am loading photos in a custom leaderboard recursively by using following code in a function:</p>
  
  <pre><code>-(void)loadPhotos {
   [((GKPlayer*)[players objectAtIndex:i]) loadPhotoForSize:GKPhotoSizeSmall withCompletionHandler: ^(UIImage *photo, NSError *error) {
  
              if (error != nil)
              {
  
                  NSLog(@"Error: %@", error);
              }
              if (photo != nil)
              {   
  
                  [friendPhotos addObject:photo];
                  [globalTable reloadData];
                  i++;
                  if (i&lt; [players count]){
                      [self loadPhotos];
                  }
              }
          }];
  }
  </code></pre>
  
  <p>We are currently testing the app in two devices so we have 2 players in our sandbox environment. However first call for the first player loads the photo but the second photo, I cannot load, and I print the following error:</p>
  
  <pre><code>Error: Error Domain=GKErrorDomain Code=3 "The requested operation could not be completed due to an error communicating with the server." UserInfo=0x1b19f0 {NSLocalizedDescription=The requested operation could not be completed due to an error communicating with the server.}
  </code></pre>
  
  <p>Any suggestions?</p>
  
  <p>Ps. Also tried it iteratively in a loop. Same error, and I thought it was due to I was making calls too frequently.</p>