hello, 

I read a previous post which stated that none appears because we set up a certain user/event property later on, and therefore before that time-frame the area would show none. 

However, the last changes we made to amplitude were at least 3 months. Why is there a none column in my 30day data? 

Moreover, does anyone have any idea why Amplitude doesn’t group areas in their appropriate cities? I have areas that in City A showing up in City B, and sometimes even City B showing up in City A (I’m referring to segmentation by city)