Fitbit broken under 0.61.x?

Hi,
Anyone else experiencing Fitbit issues with the latest updates on HAssio:

2018-01-18 16:50:35 ERROR (MainThread) [homeassistant.components.sensor] Error while setting up platform fitbit
Traceback (most recent call last):
  File "/usr/lib/python3.6/site-packages/homeassistant/helpers/entity_component.py", line 171, in _async_setup_platform
    SLOW_SETUP_MAX_WAIT, loop=self.hass.loop)
  File "/usr/lib/python3.6/asyncio/tasks.py", line 358, in wait_for
    return fut.result()
  File "/usr/lib/python3.6/asyncio/futures.py", line 245, in result
    raise self._exception
  File "/usr/lib/python3.6/concurrent/futures/thread.py", line 56, in run
    result = self.fn(*self.args, **self.kwargs)
  File "/usr/lib/python3.6/site-packages/homeassistant/components/sensor/fitbit.py", line 249, in setup_platform
    authd_client.client.refresh_token()
  File "/usr/lib/python3.6/site-packages/fitbit/api.py", line 157, in refresh_token
    auth=HTTPBasicAuth(self.client_id, self.client_secret)
  File "/usr/lib/python3.6/site-packages/requests_oauthlib/oauth2_session.py", line 309, in refresh_token
    self.token = self._client.parse_request_body_response(r.text, scope=self.scope)
  File "/usr/lib/python3.6/site-packages/oauthlib/oauth2/rfc6749/clients/base.py", line 408, in parse_request_body_response
    self.token = parse_token_response(body, scope=scope)
  File "/usr/lib/python3.6/site-packages/oauthlib/oauth2/rfc6749/parameters.py", line 379, in parse_token_response
    validate_token_parameters(params)
  File "/usr/lib/python3.6/site-packages/oauthlib/oauth2/rfc6749/parameters.py", line 386, in validate_token_parameters
    raise_from_error(params.get('error'), params)
  File "/usr/lib/python3.6/site-packages/oauthlib/oauth2/rfc6749/errors.py", line 415, in raise_from_error
    raise cls(**kwargs)
oauthlib.oauth2.rfc6749.errors.InvalidGrantError: (invalid_grant)

No changes where made in the settings of the fitbit.conf file locally. Maybe a server issue on Fitbit?

Cheers,
MArius

new to set it up and yes i get the same but then again the first tie setup fails with a 500 and the same in the log so i guess the callback is not ok?