Hey everybody, sorry if this is the wrong forum. I'm currently on turn 155 in an marathon game and I still only have one trade route available. I'm playing on the big "Great Earth" map as a japan. I have 4 cities on the japanese islands, 3 have harbors and 2 have commercial districts. I have roads going from Kyoto to all 3 other cities. I thought having harbors and commercial district expanded your trade capacity. I have realtionships with several countries including korea right across the pond. So what gives? Is their a bug?