Homepod Mini and volume control?

Have you ever used Homepod Mini with Roon? I am trying to, I have two separate Minis, and they connect and blast away at full volume right away. I just cannot adjust volume within Roon. Is it supposed to work at all?

Yes, it should work as a normal endpoint with volume control managed from within Roon. Have you restarted both the Mini and your Roon Server and see if that corrects the issue? Does you Mini’s volume work normally from a MacOS or iOS device?

I use mine. But, I’ve always set Roon at 100% volume and let the devices control the sound.

It does work fine on my iPhone, for example Youtube Music app. But as soon as I am starting from Roon, it starts playing 100% volume. As soon as I try turning it down in the app, nothing happens. If I try to phsyically turn it down on the Homepod Mini, it just immediatly turns it up again to max. It is a very weird behaviour.

Roon Server is running on a Mac Mini. May the Mac be the culprit in some way?