Traceback (most recent call last):
  File "/app/.venv/lib/python3.14/site-packages/paramiko/hostkeys.py", line 357, in from_line
    key_bytes = decodebytes(b(key))
  File "/usr/local/lib/python3.14/base64.py", line 586, in decodebytes
    return binascii.a2b_base64(s)
           ~~~~~~~~~~~~~~~~~~~^^^
binascii.Error: Invalid base64-encoded string: number of data characters (145) cannot be 1 more than a multiple of 4

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/app/src/slices_monitor_test_runner/test_runners/test_runner_base.py", line 175, in step
    yield
  File "/app/src/slices_monitor_test_runner/test_runners/test_runner_base.py", line 272, in step_with_retry
    target()
    ~~~~~~^^
  File "/app/src/slices_monitor_test_runner/test_runners/slices_singlenode_login.py", line 1477, in <lambda>
    lambda: self.test_ssh(
            ~~~~~~~~~~~~~^
        ssh_host,
        ^^^^^^^^^
    ...<7 lines>...
        proxy_openssh_pubkeys,
        ^^^^^^^^^^^^^^^^^^^^^^
    ),
    ^
  File "/app/src/slices_monitor_test_runner/test_runners/slices_singlenode_login.py", line 121, in test_ssh
    host_key_entry = HostKeyEntry.from_line(f"{kh_key} {proxy_openssh_pubkey}")
  File "/app/.venv/lib/python3.14/site-packages/paramiko/hostkeys.py", line 359, in from_line
    raise InvalidHostKey(line, e)
paramiko.hostkeys.InvalidHostKey: ('192.168.0.22 ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBAtVjZHNhYcbjdIW8JEqVttUwlPQF6xUFKHVJkopk0MsmN7xsrv8vK0i4uB5Y4FXPEDCSbFa5AfWvp7uS3D758sUOdrTc=', Error('Invalid base64-encoded string: number of data characters (145) cannot be 1 more than a multiple of 4'))