This one is pretty straight forward: All of my trade ships have stopped moving. I have at least 5 trade depots, and dozens of trade ships. They were all working fine at one point, until I noticed a few of them had stopped moving. I paused, and checked all of my other trade ships, and they were all idle.
No idea what caused this.
Here are the stats and save files (thanks Deadlyshoe)
-Whiskey
