I have a MX Keys keyboard, connected via bluetooth, and recently, the media keys just don't work anymore.

If I use something like BeardedSpice, it does, but I don't get why it doesn't work without it as well...

Volume keys work fine though, just the play, next and previous aren't working (on any player).

I don't know what could possibly cause this. Any ideas?

EDIT: best guess is some app is "stealing" the key presses, not sure how to find out if that's true and if so, which app.