Harmony Hub problem - Invalid entity id: remote

hass.io 0.63.2. Discovery does find the Harmony hub automatically.

Adding manually the configuration in configuration.yaml:

remote:
  - platform: harmony
    name: Living room
    host: 10.10.10.66

Results in the following error on start (and Harmony still not showing):

ERROR (MainThread) [homeassistant.core] Error doing job: Task exception was never retrieved
Traceback (most recent call last):
  File "/usr/lib/python3.6/asyncio/tasks.py", line 180, in _step
    result = coro.send(None)
  File "/usr/lib/python3.6/site-packages/homeassistant/helpers/entity_platform.py", line 245, in _async_add_entity
    'Invalid entity id: {}'.format(entity.entity_id))
homeassistant.exceptions.HomeAssistantError: Invalid entity id: remote.

Any ideas what might be wrong?