Userlist is empty in a conference

Hey everyone. Just today this thing happened, maybe someone has a clue how to fix it.

Your roster shows all of the users, but when you login to a room, there’s no one in the userlist.

Users are there and you can perfectly chat with them, but the userlist is empty.

http://i208.photobucket.com/albums/bb297/CutControl/Screenshot_150113_15_39_zps8 68c1776.jpg

I don’t recall changing any related settings in Openfire.

So to solve this you need to go to “Group Chat” > “Room Administration” > [YOURROOM] “Room settings” and tick “Broadcast Presence” for whoever you want to be visible.