Dear All,
I have had several tens of MQTT sensors/switches/etc working correctly for years now. They were all created manually in yaml files over the years and were referenced in configuration.xml like this:
mqtt: !include_dir_merge_list entities/sensors
A specific sensor would look like this (in several files, all under entities/sensors):
- platform: mqtt
state_topic: "/thermometers/28:FF:0E:C8:54:15:03:DB"
name: "Balcony temperature"
unit_of_measurement: "°C"
In the current update I got a warning in the logs that this format is deprecated and will be retired in December, so I thought I’d update them to the latest and greatest format.
Now my sensors look like this:
sensor:
- state_topic: "/thermometers/28:FF:0E:C8:54:15:03:DB"
name: "Balcony temperature"
unit_of_measurement: "°C"
I also updated my configuration.yaml like this:
mqtt: !include_dir_merge_list integrations/mqtt
The config passes validation but when restarted all these modified sensors are missing. Logs are clean, and the sensors are really missing 
: In Developer tools - States I can’t find them either.
Anyone has any idea what might be the problem?
I’d appreciate any pointers in the right direction!