Yes, on the other side of the landmass, there's a road connection between the continents. So that sort of explains it, thanks.Do you have another working connection between these 2 continents?
When I've tried making all my Towns Hubs in order to count the number of connections each had, and then converting to Cities on multiple reload to check what these connections were, I found I only ever had one connection for each pair of continents.
I would just like take this opportunity to point out how bone headed this rule is. Not only should the system of connections be more intuitive, but properly explained. Also, the distinction between continents should be more plain: mountains, water, narrows, cliffs, something(!) to show where the continents divide. At the moment it seems arbitrary.