after upgrading to Ubuntu 20.10 I noticed that I had to reinstall the antfs-cli and openant. After doing so (as indicated in the READMEs), my Garmin ForeRunner610 is still not found anymore by the antfs.....

It starts searching but replies that the Message object does not contain data....I know I have seeen this some years ago, but I do not recollect how I solved it.

I am using python3.8 on my machine.

Included the latest log-file:
20201030-161421-antfs-cli.log

Output to screen:
Driver available: [<class 'ant.base.driver.USB2Driver'>, <class 'ant.base.driver.USB3Driver'>]

• Using: <class 'ant.base.driver.USB3Driver'>
  Request basic information...
  Capabilities: array('B', [8, 8, 0, 186, 54, 0, 223])
  Starting system...
  Key done...
  Searching...
  Exception in thread ant.base:
  Traceback (most recent call last):
  File "/usr/lib/python3.8/threading.py", line 932, in _bootstrap_inner
  self.run()
  File "/usr/lib/python3.8/threading.py", line 870, in run
  self._target(*self._args, **self._kwargs)
  File "/usr/local/lib/python3.8/dist-packages/ant/base/ant.py", line 180, in _worker
  and message.data[1] == 0x01
  AttributeError: 'Message' object has no attribute 'data'
  Traceback (most recent call last):
  File "/usr/local/lib/python3.8/dist-packages/antfs_cli-0.4-py3.8.egg/antfs_cli/program.py", line 384, in main
  g.start()
  File "/usr/local/lib/python3.8/dist-packages/ant/fs/manager.py", line 223, in start
  self._main()
  File "/usr/local/lib/python3.8/dist-packages/ant/fs/manager.py", line 150, in _main
  if self.on_link(beacon):
  File "/usr/local/lib/python3.8/dist-packages/antfs_cli-0.4-py3.8.egg/antfs_cli/program.py", line 167, in on_link
  self.link()
  File "/usr/local/lib/python3.8/dist-packages/ant/fs/manager.py", line 383, in link
  self._send_command(LinkCommand(self._frequency, 4, self._serial_number))
  File "/usr/local/lib/python3.8/dist-packages/ant/fs/manager.py", line 199, in _send_command
  self._channel.send_acknowledged_data(data)
  File "/usr/local/lib/python3.8/dist-packages/ant/easy/channel.py", line 119, in send_acknowledged_data
  self.wait_for_event([Message.Code.EVENT_TRANSFER_TX_COMPLETED])
  File "/usr/local/lib/python3.8/dist-packages/ant/easy/channel.py", line 50, in wait_for_event
  return wait_for_event(ok_codes, self._node._events, self._node._event_cond)
  File "/usr/local/lib/python3.8/dist-packages/ant/easy/filter.py", line 73, in wait_for_event
  return wait_for_message(match, process, queue, condition)
  File "/usr/local/lib/python3.8/dist-packages/ant/easy/filter.py", line 62, in wait_for_message
  raise AntException("Timed out while waiting for message")
  ant.easy.exception.AntException: Timed out while waiting for message
  Interrupted: Timed out while waiting for message

EDIT:
I researcjhed a bit further: the moment the abtfs-cli command outputs 'Searching...', the ttyUSB0 device is removed and unbound

Any ideas?

Kind regards
Peter