I would enlighten this to forms not lining up. It’s been a while since I’ve sold anything on Facebook, or even had a Facebook, but it wouldn’t surprise me if it was just a form they submitted and the person submitting the form didn’t know how to fill it out properly. I.e. submitted wrong category and had to enter a number of rooms as a required field.

Always read the description. Even on actual housing like Zillow, the description often includes details that can’t be portrayed in the static fields.