Homebrew Crash Mind Over Mutant WiiFlow Black Screen

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Hi all,
I have a problem with Crash Mind Over Mutant.Every time i try to play the game i get a black screen and i can't do anything.It seems that my Wii freezes and i have to restart it.I tried to play the game using Dolphin and it plays with no problems.So it's not a bad iso/wbfs or something.
I'm using the latest WiiFlow and i think i have all necessary IOS/CIOS installed.I ran CysCheck and ModMii told me that my softmod is up to date.I have played a ton of games with no problem at all.This is the first time i get a black screen for a Wii game.
If anyone knows something and can help me please help me.

Also,one more question.When i play a GameCube game with wiiflow can i do something to go back to Wiiflow menu when i want to exit the game or i have to restart my Wii every time i want to change/exit a GC game?

Thanks for reading.

 

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For some reason the NTSC WBFS file i had is not working on my Wii but it works with Dolphin emulator.I tried a PAL version of the game and it works just fine.Weird...
Anyway..does anyone knows if and how to return to Wiiflow menu after a GameCube game?
Thanks.