I don't know how to submit images here but it seems like the map generation is bugged. I am playing on a 1:200 scale world, and have unlocked most of the eastern part of the United States. But there's still some patches not explored yet, and when I uncover them, I get a starkly different environment than what's around it. There is a desert in southern Georgia (the state) and eastern Kentucky, and a lake in northern Florida. I don't know what to do to fix this.