When you happen to have Ikea zigbee lights added to the mesh as well:
Aqara sensors + Ikea lights + Homey is not a good combo. Using Ikea smartplugs wasn’t a problem though.
As soon as the sensors start to use the Ikea lights’ zigbee routers, they stop sending updates, and worse, they stop searching for alternative routers.
On other platforms, like zigbee2mqtt, this issue is non-existent on my system.
For now, you’d replace the Ikea lights or the Aqara sensors.