Hello,
First of all, I'm note a native english speaker...
I have found that is possibly a bug in the world map. It appears when I load my campagn, and I don't know if the problem was here when I exited the game before loaded it. (Do you understand my meaning ?)
The name of the mission is the name of the Ocania continent. It appears two times on the map. One for the mission (the wrong place) and one for the continent (the right place).
http://img217.imageshack.us/i/captureuww.png/