the water bug is old and caused by the savestate.
just save through memory card and start the game with this.
there is a particular bug in dolphin that overwrites zelda WWs program code with garbage... you cant find this easy with debug mode and you can fix it, but then it will apper on another part in the code later.
savestate will copy the garbaged code too, so you need to load from memory card to avoid that.
best way is to save often (on card not savestate)
also it seem to happen more often when the code cache is cleared.
i didn't noticed that bug with unlimited code cache and not using savestates at all.
just save through memory card and start the game with this.
there is a particular bug in dolphin that overwrites zelda WWs program code with garbage... you cant find this easy with debug mode and you can fix it, but then it will apper on another part in the code later.
savestate will copy the garbaged code too, so you need to load from memory card to avoid that.
best way is to save often (on card not savestate)
also it seem to happen more often when the code cache is cleared.
i didn't noticed that bug with unlimited code cache and not using savestates at all.