Cities only distributing one card
I'm using the android app. When I build a city, I'm supposed to get 2 cards if someone rolls that number on the hex next to the city. In some cases, it does give me two cards. Most of the time, it only gives me one.
Are you playing Cities and Knights by any chance? Because then you will only get one resource for ore, wood, and wool with a city - but you should also be getting coins, paper, and cloth commodities. For brick and grain you still get two resources with a city.