My experience these sensors don’t mix with Ikea zigbee lights. As soon as the sensor starts to use the Ikea light router, it stops sending updates, and worse, it does not search for other (better matching) zigbee routers anylonger.
Athom mentioned they’re trying to get both Aqara and Ikea to look into this quirk, but this is already 5 months ago:
https://community.homey.app/t/ikea-door-sensor-automatically-controls-nearest-device/129572/7
What I’d do: replace either these Ikea lights, or the Aqara sensors;
or throw in a zigbee2mqtt controller (you won’t regret it).
I use it with 16 Aqara pir/contact/temperature/flood sensors and several Ikea lights, among other stuff like Tuya, Sonoff, Lidl/Silvercrest, iCasa, no problems whatsoever.
