How to fix “Trouble hearing party or game chat?”

I find if you're having trouble hearing your friends or vice-versa in party chat, an easy fix is to simply switch from party chat to game chat and back again.

As far as voice messaging is concerned, I'm not entirely certain if MS wants to bring it back... :|

Gotcha. I heard a rumor that they are working to fix party chat. Once I was in a party chat and I could hear my party AND hear the in-game chat for Battlefield 4. The rumor was they were going to revert it to the old party chat system by next month. I
forgot where I heard that so I can't source. Again, it was a rumor, so not sure its credibility.

I am having the same issue. I have figured out what causes it, but not how to fix it.

A. Plugging your headset in after starting a party.

B. unplugging your headset.

Like I said, don't know how to fix it, but I have figured that much out. And it has something to do with game chat I assume, because if I go to the home/dashboard it stops. It is only when I am in a game or app that I can hear it.

Also when his is happening, I can no longer chat, party chat comes out of my speakers, instead if my headset, and no one can hear me. (My green dot in party chat disappears)

Sorry to hear it. However, party chat has always been limited to 8 people.

support.xbox.com/.../how-to-start-a-party

Perhaps you're confusing that with game chat.

I'm sorry to hear you are having trouble getting it to work.. Have you tryed using a different Mic? Also sometimes in your settings your party Chat can be muted without you realizing it. Sounds like you could fix it using a different Mic than your Camera
Mic. Try Party chat, and using a Headset to see if it's a Hardware issue first.