Xiaomi Aqara - New devices

I just added two new devices to my Xiaomi Aqara Gatway, two buttons. However, for some reason they don’t appear in HA. Any tipps?

Try restarting home assistant

Something which I’ve done already…

are the switches supported?
on components page it lists supported items

Yes, I have these https://de.aliexpress.com/item/Xiao-mi-mi-jia-Aqara-Smart-Wireless-Schalter-Smart-Fernbedienung-Aqara-Intelligente-Anwendung-Home-Security-mi/32850361374.html?albbt=Google_7_shopping&isdl=y&slnk=&albslr=228443213&src=google&acnt=494-037-6276&aff_platform=google&crea=en32850361374&netw=u&plac=&albcp=1633827077&mtctp=&aff_short_key=UneMJZVf&gclid=Cj0KCQiA597fBRCzARIsAHWby0GknVmZH-aEziHUgYNHUEG-pbpmoqPRkzMgkqFmd6sqLWk6mxHgwjwaAjioEALw_wcB&albag=63055940355&albch=shopping&trgt=296904914040&device=c&gclsrc=aw.ds

i have a few of them and they come into HA fine. anything in the logs?

Damn… I found the issue:
Unsupported device found! Please create an issue at https://github.com/Danielhiversen/PyXiaomiGateway/issues and provide the following data: {‘cmd’: ‘read_ack’, ‘model’: ‘remote.b1acn01’, ‘sid’: ‘158d000215c78a’, ‘short_id’: 37169, ‘data’: ‘{“voltage”:3175}’}