When holding a sea fishing rod and you try to let go of the wheel you are forced move to the point where your rod target is as well as your sail will rotate to that direction(I suggest the sea rod target disappears after you grab the steering wheel)
second bug is that when you rotate the camera while steering the target which shows what direction you are sailing ,stays on the same spot instead of moving to the spot you are actually sailing to. Of course all of this has to be done on a boat.
Try letting go of the steering wheel with a sea fishing rod. Try rotating(R1 L1) while steering.