Keeps muting my friends

Muting on the party or chat game?

Maybe you press any button with knowing.

Same issue, Astro A50 gen 4 with base station and elite series 2 contoller.

In party chat window, i light up when speaking and my friends can hear me chat, my friends icons light up when speaking but i can not hear them.

This happens a lot, when I try to use voice chat.

Easiest fix has been that when I'm in a chat where I can't hear other players,

I just replug the headset I use into the 3,5mm port of the controller.

I find this annoying. Also using Xbox One X.

Yeah, I'm pretty sure it's not a headset issue. I replaced my M80 mixamp (Astro) with a brand new one and nothing changed. The headset itself can't mute others, only the console has the ability to do that, and there's no way to tell the headset to tell
the console to mute the party. It has to be an issue with the xbox itself.

I know it's been about 2 weeks since you had your issue. Did you manage to solve it yet? There's a few things I can think of to try and help.

First of all, are your headsets the ones designed to also output the video game audio as well as game chat? If so, are they still putting out that game audio into your headset when your party chat is muted, or is all audio that comes out of the headset not
there anymore? If all audio is going missing, I would most likely blame the issue on hardware rather than the software. Is this a problem that anyone else in your party chat is having issue with, or only yourself?

This link: https://support.xbox.com/help/hardware-network/display-sound/troubleshoot-xbox-one-party-audio

gives some basic info, I know it might not help but it does mention that network latency can affect the quality of your party chat. How is your internet quality when you play? Do you notice that the party chat goes out whenever you're lagging in your games?
I would try port forwarding, if you have yet to do that, just as a last ditch attempt to improve your internet quality and see if that helps.

If it's any consolation at the end of all of this, I myself have had party chats conk out on me on like an hourly basis in early May, and I did get a message from xbox saying that they were having some issues with their social aspects of the platform. The
platform's not always perfect, and some errors might not even be caused from your side.