having trouble with Zumba World Party video game?

lwright311

I have all the Zumba game for the Wii. It seems Zumba World party doesn't work correctly. I have played the whole game once through with 5 stars in almost everything and still can't get past level 6. also in the world tour section I have to do each section all the way through or it won't save. is anyone else having issues like this with Zumba world party or is it just me?