My Homekit System loses the recent configuration and restores an old configuration

Hello everyone!

One little question:

I have home automation with many Homekit accessories:

Bticino with complete electrical system (living now connect series)

Elgato sensors: eve motion, eve Air, eve power

Philips Hue: hub, stripled, lamp, ...

Everything worked great, but the Homekit system has recently restored the configuration of a few months ago for no reason: I lose all BTicino devices and the latest HUE accessories from Philips and Elgato.

I have to reconfigure everytime everything. It's crazy! I have over 149 connected devices !!

On the Homekit HUB (2 x Apple TV) and on my apple devices I have the same icloud account which should always synchronize all connected devices.

Can someone help me? Any Idea?

THX!!

Danilo