So one of my parties finally reached Baldur's Gate, and the entrance to the city offers some spectacular views of its surroundings. You can see many boats sailing in the river, for instance. Only they are not sailing. Their sails billow, but they don't move! It is like looking at a painting. You can guess what such a view does to my immersion level, which wasn't too high to begin with.
Now I can imagine it being technically difficult to let the ships move. But if they are lying still, do remove the sails, or let them hang limp to show that there is no wind to move the vessels.