Can not turn of ATV with Siri from HomePods

Setup: ATV4K

HomePods

and ATV4k

HomePod mini

A year ago i could say, Hey Siri, turn of TV and the ATV and my TV turned of, very nice. But then without me changing anything this stopped. Booth my ATV are in the same room i HomeKit as the HomePods, and with latest software. I can use for example my iPhone and say: Siri, turn of tv in living room and it does it correct.

Is this feature turned off, or do someone have a clue what to do.