Walkthrough for the "Tribes of the East" expansion.

Guys, I don't know. In my green castle, I only have one shipyard, located where I arrived by ship, where the turquoise hero was. Moreover, I can't build a ship on it until I move the ship I arrived on somewhere else, as it's in the way. Please post a screenshot; maybe my game is bugged. Do you have a shipyard? I don't...