Brave sound problem

Some bug causes Brave to mute all my windows sounds.

I will watch a video, e.g. a YouTube video/Twitch etc., if I then pause that video and watch a video in Chrome or start playing music via Winap or talk over Discord I don’t hear anything. I have to start playing the video in Brave again or reload the the website in Chrome, restart Discord. Why can Brave mute all Windows sounds?

Please help.