Restarting HomeAssistant loses all sensors until NR restart

[steve28]

Version of the custom_component

custom component version: 0.4.4
HA version: 0.111.4
node-red-contrib-home-assistant-websocket: 0.22.5

Configuration

N/A

Describe the bug

When I restart HA, the sensors all become unavailable until I restart NR. I am using Home Assistant Core in docker and the NR container from NR. At startup, I get the following logs.

HA logs

2020-06-20 15:42:53 ERROR (MainThread) [homeassistant.components.websocket_api.http.connection.140509475963600] Received invalid command: nodered/discovery
2020-06-20 15:42:53 ERROR (MainThread) [homeassistant.components.websocket_api.http.connection.140509475963600] Received invalid command: nodered/discovery
2020-06-20 15:42:53 ERROR (MainThread) [homeassistant.components.websocket_api.http.connection.140509475963600] Received invalid command: nodered/discovery
2020-06-20 15:42:53 ERROR (MainThread) [homeassistant.components.websocket_api.http.connection.140509475963600] Received invalid command: nodered/discovery
2020-06-20 15:42:53 ERROR (MainThread) [homeassistant.components.websocket_api.http.connection.140509475963600] Received invalid command: nodered/discovery
2020-06-20 15:42:53 ERROR (MainThread) [homeassistant.components.websocket_api.http.connection.140509475963600] Received invalid command: nodered/discovery
2020-06-20 15:42:53 ERROR (MainThread) [homeassistant.components.websocket_api.http.connection.140509475963600] Received invalid command: nodered/discovery
2020-06-20 15:42:53 ERROR (MainThread) [homeassistant.components.websocket_api.http.connection.140509475963600] Received invalid command: nodered/discovery
2020-06-20 15:42:53 ERROR (MainThread) [homeassistant.components.websocket_api.http.connection.140509475963600] Received invalid command: nodered/discovery
2020-06-20 15:42:53 ERROR (MainThread) [homeassistant.components.websocket_api.http.connection.140509475963600] Received invalid command: nodered/discovery
2020-06-20 15:42:53 ERROR (MainThread) [homeassistant.components.websocket_api.http.connection.140509475963600] Received invalid command: nodered/discovery
2020-06-20 15:42:53 ERROR (MainThread) [homeassistant.components.websocket_api.http.connection.140509475963600] Received invalid command: nodered/discovery