I've been staring at the map in 1.5, and I love how Asia minor has been redesigned, but then I saw this:
It's like there's a phantom river extending out there. Now while this doesn't really bother me, I'm wondering what could be causing this and if anyone else is experiencing it.
Edit:
I just looked at the map_features file and overlayed it on the map_regions, and this is what I got:
As you can see there is a river extending quite a bit into the sea. I guess the problem would be fixed by just erasing the excess river, though I don't know if you have to start a new game for the change to take effect. Anyways I didn't make any changes to the map_regions file, so I assume everyone with 1.5 installed has this phantom river...