LG TV - state always 'off' even when TV is actual on

1

I have a problem with my LG TV (webOS). My media_player entity has always the state “off” even when its actually on. Is that a known problem?

Configuration:

webostv:
  host: 192.168.x.y
  name: "LG TV"
  turn_on_action:
    service: wake_on_lan.send_magic_paket
    data:
      mac: "aabbccddeeff"