Home App doesn't safe Siri callibration

Hello community,

I got a problem with Home App and Siri.

A few days ago I added a Homepod mini to my Home Kit and I was asked to voice calibrate Siri, which I did.

But ever since, every time I open the Home app, the calibration is gone and I need to repeat the process.

All permissions are enabled, so I don't understand what the actual problem is, since Siri itself is calibrated on my iPhone 13pro and works fine and has also been calibrated like 30 times already in the Home app, which is obviously never saved, even if it's said so after calibration.

Aynone an idea what the problem could be? I mean, it looks like the problem started with adding the Homepod mini, so maybe there's an issue, but I can't find out what I do wrong or if it's just a bug that needs a fix by an update...

Thanks in advance!