"I was living in Warsaw in November."

Translation: W listopadzie mieszkałam w Warszawie.

[pauly4it]

Why isn't "W Warszawie mieszkałam w listopadzie" correct as well?

[Jellei]

I think you should report it, although it puts quite a peculiar stress - the main translation puts stress on WHERE were you living in November, while your version seems to be about WHEN were you living in Warsaw.