Xiaomi Mi Smart Home Binding: Mi window contacts stopped working, Aqara contacts still operational

I’ve implemented some monitoring for the battery levels of my openHAB items and noticed that Mijia Door/Window Sensors don’t report to openHAB anymore while the Aqara Door/Window Sensor still do. I’ve checked th Xiaomi App and see that the sensor data is at least available within the app. (not only battery level data, but open/closed states, too)

Does someone have a similar issue? Any ideas how to fix this?

I found the cause: the channel name was no longer valid mihome:sensor_magnet_aq2:<id>:isOpen
I had to strip _aq2. I replaced it with mihome:sensor_magnet:<id>:isOpen and things work like a charm again…

Maybe this change came through updating the gateway or openHAB. Since these sensors are no Aqara sensor, it totally makes sense…