I developed a custom integration cyberq and am now trying to write a blueprint for notifications. One of my sensors is a state change from the device which is represented as a SensorDeviceClass.ENUM.
I am not having any luck getting notifications from the blueprint, so I went to Developer Tools → Events and watched for state_changed events on the bus. I am seeing state change events for the climate sensors, but not for this state sensor. History for this entity shows the state change and the changes are reflected in a timely manner on the device page. The sensor data also looks correct on the STATES page: