Comment 6 for bug 1952949

I also experience this symptom, though maybe from a different cause.

Studio Controls gets stuck on "Adding Bridges", at which point the tail of ~/.log/autojack.log looks like

2022-06-14 16:30:34,767 - AutoJack - INFO - Got start signal.
2022-06-14 16:30:34,767 - AutoJack - INFO - Running: config_start()
2022-06-14 16:30:37,321 - AutoJack - INFO - Running: config_start after jack_stat
2022-06-14 16:30:55,830 - AutoJack - ERROR - Exception in handler for D-Bus signal:
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/dbus/connection.py", line 232, in maybe_handle_message
    self._handler(*args, **kwargs)
  File "/usr/bin/autojack", line 1739, in ses_cb_command
    config_start()
  File "/usr/bin/autojack", line 819, in config_start
    extra_devices()
  File "/usr/bin/autojack", line 142, in extra_devices
    start_slave(fullname)
  File "/usr/bin/autojack", line 1364, in start_slave
    dsr = sub_db['frame']['rate']
TypeError: 'int' object is not subscriptable

I take this to mean that either `sub_db` or `sub_db['frame']` has an int value where a dict is expected.

I am running Studio Controls version 2.3.4 on Ubuntu 22.04.