Lg webos select sound output

Dear all, after upgrading home assistant I lost the possibility to select tv sound output.
In the log, I see this error.

2022-02-18 20:46:27 ERROR (MainThread) [homeassistant.util.logging] Exception in async_signal_handler when dispatching 'webostv': ({'entity_id': ['media_player.tv_salone'], 'sound_output': 'internal_speaker', 'method': 'async_select_sound_output'},)
Traceback (most recent call last):
  File "/usr/local/lib/python3.9/site-packages/aiowebostv/webos_client.py", line 938, in change_sound_output
    return await self.request(ep.CHANGE_SOUND_OUTPUT, {"output": output})
  File "/usr/local/lib/python3.9/site-packages/aiowebostv/webos_client.py", line 616, in request
    raise WebOsTvResponseTypeError(response)
aiowebostv.exceptions.WebOsTvResponseTypeError: {'type': 'error', 'id': 13, 'error': '500 Application error', 'payload': {'returnValue': False, 'errorText': 'There is No matched extended item: soundOutput'}}
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/components/webostv/media_player.py", line 172, in async_signal_handler
    await getattr(self, data["method"])(**params)
  File "/usr/src/homeassistant/homeassistant/components/webostv/media_player.py", line 110, in cmd_wrapper
    raise HomeAssistantError(
homeassistant.exceptions.HomeAssistantError: Error calling async_select_sound_output on entity media_player.tv_salone, state:on

Do you have any suggestions ?