My XO ONE headset is not working with my Xbox One S. can someone help

I specificallygot the X42's because Turtle Beach said those were compatible. Also my brother just purchased the new Turtle Beach XO ones or something like that. Came with the adapter, his doesn't work either.

If my headset didn't work, then why can they hear me in the game?

I am wanting to get the XO Four Turtlebeach, but I want to know if this just works with a headphone jack on my Vizio TV. So I can watch regular cable with my headset on.

(different input, not connected to xbox one)

Do you have a xbox headset adapter plugged into your XO controller? That is the only way to get third party headsets working with the Xbox one. It all works (audio and voice) through the xbox one controller not your television. The adapter can be bought
for $24.95 at the Microsoft store.

I can't hear anybody through my TB XO One headset, but they can hear me. Game chat is fine, but in party chat it doesn't work. It shows me speaking when I speak, and my friends tell me they can hear me, and if I unplug the headset, I can hear people speaking
through the TV speakers.

The fact that game chat still works proves that it's Microsoft's software, not my headset, adapter, Xbox or controller.

To the user above I just bought a Turtle beach XO X4's and i have the same problem when they are plugged into my One. They have no issue when plugged into my laptop so it probably isn't the headset itself.