`justMyCode` not working when used in VSCode settings

Environment data

• VS Code version: 1.55.2
• OS and version: Mac Os 11.2.3
• Python version (& distribution if applicable, e.g. Anaconda): 3.8.9
• Type of virtual environment used (N/A | venv | virtualenv | conda | …): Docker
• Value of the python.languageServer setting: ms-python.python

Expected behaviour

When specifying the following configuration object directly in the VSCode settings’ .launch.configurations, justMyCode should just work (just like when it is added in the context of the classic launch.json file):

            {
                "args": [
                    "runserver",
                    "localhost:8001"
                ],
                "console": "internalConsole",
                "django": true,
                "justMyCode": false,
                "name": "Django",
                "program": "${workspaceFolder}/manage.py",
                "request": "launch",
                "type": "python"
            }

Actual behaviour

justMyCode is completely ignored.

Steps to reproduce:

1. Add the above snippet to the settings’ .launch.configurations
2. Open a dockerized Python project and add a breakpoint inside a third-party package.
3. Try to step into the package code.
4. Ascertain that the effort is unsuccessful.

[niccolomineo]

Just chiming in again to say I don’t seem to have this problem with Pylance.

[kimadeline]

Closing since this is happening with MPLS and not with Pylance, and that our team’s development efforts have shifted to support the the latter.