I was riding in a boat, filling in the empty spaces on the largest scale map when I had to log out. When I logged back in, the map would not update new areas that I explored and the white cursor wouldn't move, leaving me with a large area of the map blank when I have explored that area. When I tried to duplicate the map to see if the new copy would work, that map was broken as well and wouldn't update.

*What I expected to happen was...
I thought that the map should have continued to update when I logged back in as I explored new areas.

What actually happened was...:
The map stopped updating. When I moved around, the cursor would not follow me and the map would not show newly explored regions.

Steps to Reproduce:
1. Be riding in a boat with a map open in your inventory.
2. Log out of the game.
3. Log back in and look at the map and it will now be stuck in one spot and won't update as you move.
4. Now the file actually doesn't load the saved game, although I don't know if that has to deal with the glitch as well, or is something else at work.