Strange NFS:MW glitch....

[Ryanbom]

I was playing local multiplayer with my sister (she was annoying me) signed in with my account, and she was signed in with hers. She went to bed, so I started playing some Career. I beat Ronnie and not only did it not give me the achievement, it gave my sister's account every achievement for the game!!! Even the ones I havent completed yet....

Anything at all I can do to get my achievement back without having to make and play through a new career?

[vinny0621]

That is the strangest thing I have ever heard and I am betting you will have to start an new game to get back your achievements

[nirvana4life]

Smack her in the face and delete her account, it usually works

[NYTrigga101]

same happened to a friend of mine, his NFS achievements went to his brothers account and he got the last acheivement, so now he's redoing the whole game