Facebook friends missing from Epic

After logging back into Facebook from Epic, all my Facebook friends are missing from the friend lists. Even removing Epic from Facebook and adding it back by logging in from Epic did not fix the problem. And it appears that only name and profile picture is shared with Epic; sharing of Facebook friends is no longer an option. So now I can no longer borrow any birds from friends. Are any of you experiencing the same? I guess just to be on the safe side, do not log out of Facebook from Epic for as long as you can.