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Python debug mode not working properly

See original GitHub issue

Environment data

VS Code version: 1.55.2-1
Extension version (available under the Extensions sidebar): v2021.3.680753044
OS and version: 5.11.14-arch1-1
Python version: 3.9.3-1
Type of virtual environment used: N/A
Relevant/affected Python packages and their versions: debugpy (1.2.1)
Relevant/affected Python-related VS Code extensions and their versions: ms-python.python
Value of the python.languageServer setting: Pylance

Expected behaviour

If there are breakpoints or exceptions, when run in debug mode, application should be stopped and taken to breakpoints.

Actual behaviour

When run in debug mode the application doesn’t stop where it should.

Steps to reproduce:

I’m running a minimal file with no other extensions enabled

print('foo')

def bar():
    print('bar')

raise Exception('raising exception!')

bar()

I’m also using an autogenerated launch.json for the sake of simplicity

{
    // Use IntelliSense to learn about possible attributes.
    // Hover to view descriptions of existing attributes.
    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
    "version": "0.2.0",
    "configurations": [
        {
            "name": "Python: Current File",
            "type": "python",
            "request": "launch",
            "program": "${file}",
            "console": "integratedTerminal"
        }
    ]
}

I set a breakpoint on the first line.
Run file in debug mode.

Logs

Output for Python in the Output panel (View→Output, change the drop-down the upper-right of the Output panel to Python)

foo
Traceback (most recent call last):
  File "/usr/lib/python3.9/runpy.py", line 197, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "/usr/lib/python3.9/runpy.py", line 87, in _run_code
    exec(code, run_globals)
  File "/home/isinyaaa/.vscode/extensions/ms-python.python-2021.3.680753044/pythonFiles/lib/python/debugpy/__main__.py", line 45, in <module>
    cli.main()
  File "/home/isinyaaa/.vscode/extensions/ms-python.python-2021.3.680753044/pythonFiles/lib/python/debugpy/../debugpy/server/cli.py", line 444, in main
    run()
  File "/home/isinyaaa/.vscode/extensions/ms-python.python-2021.3.680753044/pythonFiles/lib/python/debugpy/../debugpy/server/cli.py", line 285, in run_file
    runpy.run_path(target_as_str, run_name=compat.force_str("__main__"))
  File "/usr/lib/python3.9/runpy.py", line 268, in run_path
    return _run_module_code(code, init_globals, run_name,
  File "/usr/lib/python3.9/runpy.py", line 97, in _run_module_code
    _run_code(code, mod_globals, init_globals,
  File "/usr/lib/python3.9/runpy.py", line 87, in _run_code
    exec(code, run_globals)
  File "/home/isinyaaa/projects/test/test.py", line 6, in <module>
    raise Exception('raising exception!')
Exception: raising exception!