Ok so apparently they FIXED it!!
-Go to the facebook app on phone
-Go to Account Settings
-Go to Notifications
-Go to Mobile Push
-Look at the top of the screen and it said "Sound for push notifications"
-Edit it to ON for all notifications
They fixed it I now receive sounds for notifications!!!!!
Tell people that are having this issue please
This is what I did last night to fix my wife's Ipod touch gen4:
I found out that she changed the time of the Ipod (turned it to October for Candy Crush Saga lives) and I turned it back to current time. I also reset all setting and it worked. I don't know exactly which action to fix it but you'd better try one by one.
How to permanently solve the problems Push Notifications on Facebook
1 - Go to Settings> Applications .. Listed falls until facebook and Turn OFF Disconnects!
2 - Go to FB app that u have installed> click the app> will Config.Account> Notifications and disable all notifications and SONS
3 - Get the App (Mata him on Multi Task) and wait about 3 minutes.....
4 - Click again on the App> Config will. Account> Notifications and ENABLE ALL NOTICES AND SONS
5 - Close the App again (Mata him in Muti Task)
6 - Turn off the Iphone
7 - Switches the set
8 - Click on the Facebook icon and Be Merry receiving all notices
1 - Does not make the facebook login in settings OK!
2 Make sure that in Settings> Notifications Facebook is enabledin ALL options (Notice in Apps, Sounds, In Notification Center,Show in Lock Screen)