Me too. Tried everything listed. Clearly there's a problem that needs to be addressed.
WORKAROUND: I use a Blue Yeti microphone that has a headphone jack in its base. If I plug the headphone into the Blue Yeti and then plug the microphone into its USB port, the headphone works.
Not the best solution, but it does work.
Thank you for this tip! Just bought a Blue Yeti and a new headset so I was very lucky to find your comment.
Have you found a way to not hear yourself through your headphones due to it being connected to the microphone? I muted the mic for now so I can't hear myself clicking my mouse but when I need to use my mic I hope there is a way to not be hearing myself.