Incorrect identification of first and third party modules

[Zsófia]

I came across the issue that isort identifies the first party modules as third party, and reorders the way my imports are sorted.

In my CI/CD I have a test job set up where the module detection seems to work, and since I have incorrectly sorted my imports locally, when I push changes, my test pipeline fails.

I have the same Python and isort versions pinned in both environments.

The issue occurs irregularly.