Hi, I try to connect Ubisys G1 hub to Home assistant via Matter. The hub pairs without problems, but if there are any secondary device connected to the hub, HA matter integration has a failure.
Ubisys should be matter certified.
https://www.ubisys.de/en/technology/matter/
I have also SwitchBot matter hub and one secondary device insode it. It works well.
BR,
Ilkka