Release 2023.8.0 of Home Assistant introduced some changes to how MQTT entities work. Documented here:
2023-08-02 15:33:30.970 WARNING (MainThread) [homeassistant.components.mqtt.mixins] MQTT entity name starts with the device name in your config {'availability_topic': 'octoPrint/mqtt', 'payload_available': 'connected', 'payload_not_available': 'disconnected', 'name': 'Ender 3 Print Status', 'unique_id': 'f3ced1a508db4ed5bd4f3d59757faf2c_PRINTING_S', 'state_topic': 'octoPrint/hass/printing', 'json_attributes_topic': 'octoPrint/hass/printing', 'json_attributes_template': Template<template=({{value_json.state|tojson}}) renders=0>, 'value_template': Template<template=({{value_json.state.text}}) renders=0>, 'device': {'identifiers': ['f3ced1a508db4ed5bd4f3d59757faf2c'], 'name': 'Ender 3', 'manufacturer': 'CREALITY', 'model': 'OctoPrint', 'sw_version': 'HomeAssistant Discovery for OctoPrint 3.6.3', 'connections': []}, 'qos': 0, 'enabled_by_default': True, 'availability_mode': 'latest', 'force_update': False, 'encoding': 'utf-8'}, this is not expected. Please correct your configuration. The device name prefix will be stripped off the entity name and becomes 'Print Status'
Release 2023.8.0 of Home Assistant introduced some changes to how MQTT entities work. Documented here:
https://developers.home-assistant.io/blog/2023-057-21-change-naming-mqtt-entities/
And now shows with this warning/fix in Home Assistant:
Here's an example of the warning logged in the log file: