Board Thread:Questions and Answers/@comment-82.239.130.231-20160318082002/@comment-26828130-20160318110232

If u play via portal with FB login;
 * 1) Open the game via portal
 * 2) Open the game via FB (keep portal open)
 * 3) Reload portal (keep FB open)
 * 4) Close FB

If your friend still doesn't show in your game, repeat these steps 2 or 3 times, but usually once should be enough Pixel is aware of the problems with syncing between them and FB, this is a wellknown walkaround