Trade: diminishing returns for extra ships?

[Hosakawa Tito]

Yes, trade spots are a bit glitchy. I noticed for example that splitting a fleet while it's sitting in a trade spot will cause the part of the fleet that remains on the spot to bug majorly : the trade route is cut, and while you can select ships, none can move anymore and you have to destroy them. Similarly, adding a trade ship to a fleet stack sitting in the trade spot will not always update the trade goods sent.

So, whenever you need to tweak your trade fleets, move them from the trade spot first.

I had my overseas supply trade disappear from the trade scroll because of this. I found that by destroying/deleting the fleet captain's ship while they were stuck on the trade spot seemed to fix the problem, the entire fleet didn't have to be destroyed.