core: Mikrotik hub is broken?

Home Assistant release with the issue: 0.103.5

Last working Home Assistant release (if known): N/A, this is my first attempt to configure mikrotik

Operating environment (Hass.io/Docker/Windows/etc.): Python virtualenv on debian testing installed as systemd container

Integration: https://www.home-assistant.io/integrations/mikrotik/

Description of problem: Can’t get to work mikrotik hub. Getting following error: Error during setup of component mikrotik I’m using 6.46.1 routeros.

Problem-relevant configuration.yaml entries and (fill out even if it seems unimportant):

mikrotik:
  - host: 192.168.1.1
    username: secret
    password: secret
    login_method: plain
    port: 8728

Traceback (if applicable):

Traceback (most recent call last):
  File "/srv/homeassistant/lib/python3.7/site-packages/homeassistant/setup.py", line 176, in _async_setup_component
    component.setup, hass, processed_config  # type: ignore
  File "/usr/lib/python3.7/concurrent/futures/thread.py", line 57, in run
    result = self.fn(*self.args, **self.kwargs)
  File "/srv/homeassistant/lib/python3.7/site-packages/homeassistant/components/mikrotik/__init__.py", line 94, in setup
    api.connect_to_device()
  File "/srv/homeassistant/lib/python3.7/site-packages/homeassistant/components/mikrotik/__init__.py", line 163, in connect_to_device
    self.hostname = self.get_hostname()
  File "/srv/homeassistant/lib/python3.7/site-packages/homeassistant/components/mikrotik/__init__.py", line 169, in get_hostname
    data = self.command(MIKROTIK_SERVICES[IDENTITY])
  File "/srv/homeassistant/lib/python3.7/site-packages/homeassistant/components/mikrotik/__init__.py", line 179, in command
    if not self.connect_to_device():

<lots of repeated lines>

File "/srv/homeassistant/lib/python3.7/site-packages/homeassistant/components/mikrotik/__init__.py", line 151, in connect_to_device
    self._host, self._user, self._password, **kwargs
  File "/srv/homeassistant/lib/python3.7/site-packages/librouteros/__init__.py", line 48, in connect
    method(api=api, username=username, password=password)
  File "/srv/homeassistant/lib/python3.7/site-packages/librouteros/login.py", line 25, in login_plain
    api('/login', **{'name': username, 'password': password})
  File "/srv/homeassistant/lib/python3.7/site-packages/librouteros/api.py", line 79, in __call__
    return self.rawCmd(cmd, *words)
  File "/srv/homeassistant/lib/python3.7/site-packages/librouteros/api.py", line 90, in rawCmd
    self.protocol.writeSentence(cmd, *args)
  File "/srv/homeassistant/lib/python3.7/site-packages/librouteros/connections.py", line 137, in writeSentence
    encoded = self.encodeSentence(cmd, *words)
  File "/srv/homeassistant/lib/python3.7/site-packages/librouteros/connections.py", line 23, in encodeSentence
    encoded = b''.join(encoded)
  File "/srv/homeassistant/lib/python3.7/site-packages/librouteros/connections.py", line 36, in encodeWord
    return Encoder.encodeLength(len(word)) + encoded_word
  File "/srv/homeassistant/lib/python3.7/site-packages/librouteros/connections.py", line 46, in encodeLength
    if length < 128:
RecursionError: maximum recursion depth exceeded in comparison

Additional information: