I spotted the same issue. I modified traderoutes locally and it starts correctly. However the ship sails to the spice route and the new units arrive at the docks in europe (a different screen). Kailric once said the AI goes to Europe nomatter what meaning somewhere in the code there is a switch to check for human/AI players and I need to figure out how it works to be able to send the ship to the same dock as the units arrive. One little funny thing is that when the ship starts at sea the colonists aren't in the ship. They are standing on water on the same plot. On new turn event they transport to the nearest discovered land, but they can't board the ship before they have been on land first I think it would be better if the ship use a different placeholder. It's confusing to have the same graphics for colonists and the ship. Basically it's colonists boarding a colonist and then the colonist walks across water... with footprints and everything.