Bump.
Had a really nice city going, spanning several different territories, my knight was an Archduke, I owned half the world map, and I was swimming in gold and resources.
I went to build a wall around my city, however, and found that one 30ft section just would not under any circumstances be placed.
It was a freaking 10-degree incline and the game said the ground wasn't flat enough.
loving forget. :c
So I eventually ragequit. All over a 30ft span of open ground.