super Mario galaxy 2 blue texture glitch

[RocksCheats]

When staring up SMG2 the background is all blue and I can't see the game at all I can only see Mario in a dark blue.
any ideas on how to fix this.

[Jack]

• Make sure that you are using the latest beta/development version of Dolphin.
  
• Are you using NKit ISO format? If yes, then avoid using NKit ISO, and use either WBFS/ISO.
  
• Confirm that you have the latest graphics drivers.
  
• Also try changing your graphics backend to OpenGL or Direct3D.
  

If all this doesn’t help, then open Dolphin > Right click on the icon of the game in games list > Properties > Verify > Verify Integrity
And then post the screenshot of the result here.
It might be a bad dump.