Media player group state

I have set a group with all my media players to create an automation when it’s on or off, but i noticed it is always off also if i have one media player playing. How to get the state of a media player group like on or off or better playing ?

Did you get this solved?

I have the same problem and soon no hair left…

name: xxxxxxxxxxxx
entities: 
  - media_player.xxxxx
  - media_player.zzzzzzz
all: true

Just a note, that does not work. “all” is invalid for media_player groups and only exists for light, switch maybe a few others.