Apparently if you START Battlefield 4 on your Xbox One console you will have problems when trying to turn on CHAT in the party.
Eject the DISC and restart the party and viola now your friends can turn on the CHAT when they join your party. Even if your friend DOESN'T even own BF4, they will still have problems when joining someone who starts a party after first playing BF4.
Anyone else confirm this problem? Now whether this is BF4 or MS that needs to address this I would not know...