MQTT Garage Door - Warnings in Logs

I have a Garadget device I’ve had over a year configured to use local MQTT and my logs are constantly reporting this warning:

2020-07-02 10:41:28 WARNING (MainThread) [homeassistant.components.mqtt.cover] Payload is not integer within range: -4

The garage door works fine, I just would like to clear up these errors in the logs. It reports every 10-15 seconds. The only integer payload I’m aware of is tilt, which I’m not using…but any ideas would be appreciated. My config is below:

cover:
  - platform: mqtt
    name: Garage Door
    device_class: garage
    command_topic: garadget/GarageDoor/command
    state_topic: garadget/GarageDoor/status
    payload_open: open
    payload_close: close
    payload_stop: stop
    state_open: open
    state_closed: closed
    value_template: '{{ value_json.status }}'