Can you please fix the sound glitching every second during. Broadcasting to mixer? See past...

Mixer did send out emails about a change in the ToS and CoC which required streamers to watch a video to get their new streamer key.

I think you need to log in on PC or phone and go to your Broadcast Dashboard, select Set Up Broadcast, then click on Get Started.

if you have already done this then try a Power Cycle by holding the power button on your console for 10 seconds then unplugging the power at the wall socket for a minute to clear the cache. that's usually fixed Mixer for me in the past.

To broadcast with Mixer on Xbox One, please visit: https://support.xbox.com/en-us/mixer/broadcasting/broadcast-game-mixer-xbox-one

You can broadcast on mixer through your xbox and have your friend include his audio in the broadcast. Then after your done recording stop the stream and go to mixer.com. View your past streams and download it to your computer. Edit it in a video editor,
and then upload it to youtube.

*Make sure you change your settings in mixer to save your recordings.

This is the only way to do it with out an Capture card. If you need any further help please let us know!!!

As of Sept. 4, 2019, you’ll need to complete the Mixer Streamer Review before you can broadcast.

For more information you can check
HERE

about that issues sounds like Mixer Problem with Broadcasts Fail to Show but i always goes too the Mixers Status first if there are problems by going at https://status.mixer.com/ but if its not listed you can always
going to they Support at https://mixer.com/contact and see what they would say