mixer_device timeout

[stubar]

Hi I'm in the process of writing a grid control app similar to touchable.

when trying to get the mixer device of the master track with this code

  // Establishes a connection with Live
  await ableton.start();

  const masterTrack = await ableton.song.get("master_track");
  const mixerDevice = await masterTrack.get("mixer_device");

I get the following error

Process exited with code 1
Uncaught TimeoutError Error: The command track(live_140638798970484).get_prop({"prop":"mixer_device"}) timed out after 2000 ms. Please make sure that Ableton is running and that you have the latest version of AbletonJS' MIDI script installed and renamed to "AbletonJS".

In the Ableton log I see

2024-01-18T13:03:24.190397: info: Python: WARNING:AbletonJS:190 - UDP tick is lagging, delta: 1387.0ms
2024-01-18T13:05:22.665538: info: Python: INFO:AbletonJS:665 - Setting client port: 52760
2024-01-18T13:05:22.715287: info: Python: INFO:AbletonJS:715 - Error result(34bad700-d17a-4b88-86dd-f56d1dcd03ff): TypeError: ('isinstance() arg 2 must be a class, type, or tuple of classes and types',)

I am running version 3.4.1. I've tried re-copying the midi-script folder using the package.json script.

[stubar]

I've managed to locate the source of my issue and done the following temporary workaround:

        def jsonReplace(o):
            try:
                if isinstance(o, (map, Live.Base.FloatVector, Live.Base.IntVector, Live.Base.ObjectVector, Live.Base.StringVector, Live.Base.Vector)):
                    return list(o)
            except Exception as e:
                return str(o)

in the Socket.py file. My Python isn't all that so I'm sure there's a better way of doing this.