There was a breaking change to the MQTT sensor configuration back in 2022.6
The - platform: mqtt is no longer valid and will need to change to something like this below…
I added this to my configuration.yaml
mqtt:
#certficate: auto
sensor: !include_dir_merge_list _mqtt/sensor/
binary_sensor: !include_dir_merge_list _mqtt/b_sensor/
I then placed the revised sensor config.yaml in the applicable /sensor/ directory
The new yaml would be something like this…
happy to say after updating to even the more latest version of Core 2022.8.4, everything is working again. i didnt have to edit my config yml file. phewww…