Why do some of my trade boats never leave his dock while boats arriving later continue to depart?
The trading boat that you BUILT LAST is always FILLED FIRST at his dock. For example, let’s assume that you are trading with just two ships and one of your ships is at his dock. Now, let’s assume this was the VERY FIRST trading ship you built earlier in the game. This ship currently has 15 units (of 20) of gold loaded into its cargo hold. Your second trading ship (built later) arrives at his dock. Surprisingly, the Second ship (built later) now takes priority and begins to load gold into its cargo hold while the first ship (with 15 units of gold) just sits and waits until the second ship is fully loaded and departs. Quite a pecking order. Now, compound this if you have built four or more ships to trade with just one ally/opponent!!! You will always have ships waiting at his dock AND some will be half full AND some will never leave his dock due to the arriving (younger ships).