Error in 0.58.0

After update to 0.58.0 i get this error. Any ide to solve it?

Error doing job: Task exception was never retrieved
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/asyncio/tasks.py", line 181, in _step
    result = coro.throw(exc)
  File "/srv/homeassistant/homeassistant_venv/lib/python3.6/site-packages/homeassistant/core.py", line 1031, in _event_to_service_call
    yield from service_handler.func(service_call)
  File "/srv/homeassistant/homeassistant_venv/lib/python3.6/site-packages/homeassistant/components/media_player/__init__.py", line 408, in async_service_handler
    yield from getattr(player, method['method'])(**params)
  File "/usr/local/lib/python3.6/asyncio/futures.py", line 331, in __iter__
    yield self  # This tells Task to wait for completion.
  File "/usr/local/lib/python3.6/asyncio/tasks.py", line 244, in _wakeup
    future.result()
  File "/usr/local/lib/python3.6/asyncio/futures.py", line 244, in result
    raise self._exception
  File "/usr/local/lib/python3.6/concurrent/futures/thread.py", line 55, in run
    result = self.fn(*self.args, **self.kwargs)
  File "/srv/homeassistant/homeassistant_venv/lib/python3.6/site-packages/homeassistant/components/media_player/cast.py", line 279, in turn_off
    self.cast.quit_app()
  File "/srv/homeassistant/homeassistant_venv/lib/python3.6/site-packages/pychromecast/__init__.py", line 273, in quit_app
    self.socket_client.receiver_controller.stop_app()
  File "/srv/homeassistant/homeassistant_venv/lib/python3.6/site-packages/pychromecast/socket_client.py", line 845, in stop_app
    inc_session_id=True, callback_function=callback_function_param)
  File "/srv/homeassistant/homeassistant_venv/lib/python3.6/site-packages/pychromecast/controllers/__init__.py", line 84, in send_message
    self.namespace, data, inc_session_id, callback_function)
  File "/srv/homeassistant/homeassistant_venv/lib/python3.6/site-packages/pychromecast/socket_client.py", line 603, in send_platform_message
    inc_session_id, callback_function_param)
  File "/srv/homeassistant/homeassistant_venv/lib/python3.6/site-packages/pychromecast/socket_client.py", line 554, in send_message
    self._ensure_channel_connected(destination_id)
  File "/srv/homeassistant/homeassistant_venv/lib/python3.6/site-packages/pychromecast/socket_client.py", line 640, in _ensure_channel_connected
    no_add_request_id=True)
  File "/srv/homeassistant/homeassistant_venv/lib/python3.6/site-packages/pychromecast/socket_client.py", line 597, in send_message
    raise NotConnected("Chromecast is connecting...")
pychromecast.error.NotConnected: Chromecast is connecting...

and

Heartbeat timeout, resetting connection

I don’t think it’s new to 0.58 - I see it in 0.57.3 as well. I’ve always thought it was because my TV and hence my chrome cast is off/unreachable.