Hey is another water bug.
oo
--
ww
^Say you have to screens like this. Where "o" is any walkable combo and "w" is a water combo that is not solid. When you go to the screen with the walk combo and if you have the flippers, you will automaticly start swimming, even if the combo is not solid. Because of that, you can't move or get out of the water combo.
This is with 584 by the way. And I found this by mistake, but I know that some people use unsolid water combos for Sand Zoras and stuff like that, so this may mess up things up for them as you would have to quit if your screen was setup like this:
ww
--
ww