The ladders on ships still don't work (aren't there!). And the ships still get stuck easily on land whenever you park them. Then there is the more subtle (but more annoying bug) of getting moved to the front or side of the boat when you are driving it, so that you cant turn or press A to disengage the wheel.
All these bugs are still there - only the one about getting stuck on land is better (the boats just get stuck now if you run into something like the edge of a dock or harbor.