PC Xbox Party Chat Works SOMETIMES?

It may not be the headset. See if it works in normal game chat. I've had all kind of problems with party chat. Sometimes it works, sometimes not.

Party chat works fine, but i feel like sometimes the adapter doesn't work in game chat.

Sometimes mine works and sometimes it doesn't. But today I was in a private party chat and I could hear game chat plain as day in my party chat while I was still hearing my party chat members. They could also hear me talking back to them in game chat somehow.
There are some definite issues with this.

There is sometimes an issue with the windows app and the console app not syncing correctly. A similar thing happens with the join party chat on the desktop app and console. i.e. if you join from pc it doesn't work from console.

For unknown reasons sometimes if you join a party you need to, in the Party Chat menu, hit the start button, select game chat, then select the start button and select party chat... and it works.

Why?

Who knows but at least it does.