I have a ton of Aqara motion sensors that can track illuminance / light level. I also have a few dedicated Aqara light sensors. All coming in via Zigbee2MQTT into HA.
After updating to 2025.1 yesterday for whatever reason all my illuminance sensor entities got disabled. Not the entire devices just the illuminance entities. I just noticed as I got a bunch of repair notices for automations that use these entities.
I was able to re-activate them but still a very strange issue.
I quick search on the z2m website and looking at my HA entities, I can see there is a new sensor (for my Hue motion sensors, at least) that needs to be enabled (and the old one deleted).
The difference for my Hue sensors is this;
old: sensor.<name>_illuminance_lux
new: sensor.<name>_illuminance
…i.e. remove _lux from the end
Was an easy fix once I worked this out
edit: if you go to your Z2M web frontend, you can also easily see the name of the new sensor. Here is mine: