this is what i am talking about, after the ship has sunk completely after a minute or so the smoke stops when the sunken ship dissappears but the fire continues on.
the fire is not turned off when the ship dissappears so it is not tied to the ship but apparently the smoke is still tied to the ship. i believe this is a game flaw and the smoke should be tied to the fire not the ship so that you always have smoke anytime you have fire.
i have some pics as example: