Zelda WW after beating the second boss (saving that deku kid or what it is)

im not sure if everyone has this problem,i killed the second boss and saved the little deku kid and when im step on the teleport my screen turns grey and nothing happens...I got no problems before that one idk what to do i searched all forums on the net but no one got an answear to that problem.... I hope someone help me. :-\

Are you using an emulator, a modded Wii, or a modded Gamecube to play the game?

I use Dolphin emulator latest version...