Tiles are counting as "river" still that are actually plains. This makes movement a nightmare since each square of river ends all movement. See the two images below.
In the first the cursor is hovering over the same square as my unit. Notice it's marked as a river even though it's 2 squares from the visible river.
In the second the cursor is hovering over the square between my unit and the river. It is also marked as a river even though it's the square next to the river.
Link to a save game: here
