i have this same issue sometimes i see people keying up but i do not hear them and others do this happens both on local channel and the tuned channel my settings are the same as they have always been. when someone keys up all game sounds go dead silent so i can hear what is being said but no voice if i ask them to repeat it seems to work could it be 2 or people trying to key up at same time triggering the problem i dont know but i got play voices in sequence checked