Plugin menu items showing as "NSMenuItem" in the app UI and not working

Scripting
2

Further debugging, I’ve uninstalled the “vanilla” package… and made sure to install cocoa-vanilla from Georg’s fork specifically: pip install git+https://github.com/schriftgestalt/vanilla.git

Not saying the issue is with Vanilla, but when I do run e.g. this script I do get errors related to vanilla:

Running as script…
Traceback (most recent call last):
  File "<macro panel>", line 800
  File "<macro panel>", line 46, in main
  File "<macro panel>", line 74, in __init__
  File "<macro panel>", line 151, in startGUI
  File "vanillaWindows.py", line 263, in __setattr__
    _setAttr(Window, self, attr, value)
  File "vanillaBase.py", line 404, in _setAttr
    obj._autoLayoutViews[attr] = view
    ^^^^^^^^^^^^^^^^^^^^
AttributeError: 'Window' object has no attribute '_autoLayoutViews'

This being the isolated code triggering the vanilla error when run from the Macro window:

import vanilla
print(vanilla)
from vanilla import Window

w = Window()
w.showSupported = CheckBox(
    "auto",
    "Show supported",
    sizeStyle="regular",
    value=False,
)

Interestingly the print of the module yields with that source location, not the pip installed one: <module 'vanilla' from '/Users/johannes/Library/Application Support/Glyphs 3/Scripts/site-packages/vanilla/__init__.py'>