Bug with trade centers

[dalerank]

I also attempted to make two warehouses "trade centers" in attempt to make merchants visit both however, they won't interact with either and get "stuck" refusing to ever move at whichever warehouse they attempted to reach first. Lastly, outside of the campaign docks don't seem to really do anything in regards to trading. While I do receive the warning message that inland lakes can not receive trade ships, if i place a dock (which are super picky about where you can put them) and do not receive this message I will never receive any trade ships from my established sea trade route