ON/OFF detection works, does not respond to basic commands

[geekscrapy]

I have the following config and using the Hassio VM (no additional things installed apart from a couple of Integrations), using the version of ha-samsungtv-custom which is available at this time.

The TV ON/OFF state is tracked, but the controls don't work. I have the Q80R QLED.

Config:

media_player:
  - platform: samsungtv_custom
    host: 192.168.11.11
    mac: aa:aa:aa:aa:aa:aa
    sourcelist: '{"PlayStation": "KEY_HDMI1", "RaspberryPi": "KEY_HDMI2", "Chromecast": "KEY_HDMI3"}'
    #applist: "YouTube, Apple TV, Plex, Prime Video, Spotify"
    port: 8002
    protocol: ctl_qled

I tested pretty much all the combinations of protocol and ports (so, ws on both 8001+8002, ctl_beta on 8001+8002 etc..), with and without the port variables.

If it makes a difference, the TV is on a different VLAN to Hassio, but as far as I'm aware, this should only limit the turn on feature as I guess that uses WoL.

Side note, what format should the MAC address be in? de:ad:be:ef:de:ad or de-ad-be-ef-de-ad or deadbeefdead?

[geekscrapy]

Also, I'm getting the following error a lot with the above config

2021-04-29 22:05:17 WARNING (MainThread) [homeassistant.util.async_] Detected I/O inside the event loop. This is causing stability issues. Please report issue to the custom component author for samsungtv_custom doing I/O at custom_components/samsungtv_custom/samsungctl_qled/application.py, line 41: response = requests.get(APP_URL_FORMAT.format(self._ip, APPS[app]), timeout=0.2)