Lego Harry Potter Wii glitch?

Ok, so, I was playing around in Hogwarts (finished story mode) and trying to find a lot of the characters in there. I ended up going to Hagrid's garden and went into time turner mode and turned into Hagrid and Fang. At first I was like, "yeah ok," then when I got out, I was Hermione. But I was alone. I tried pressing 'c' and all but I stayed Hermione. So, I went back to Hagrid's garden and intp time turner mode and I was Hagrid and Fang again, even though there is clearly a chain that has Reducto written all over it. When I came back out again, I was still Hermione. And I was still alone. I tried to add a player and it says that there is one that is Fang but he's not there. And the space that it says he's there doesn't move when I use the nunchuck. I'm super confused. Please help me? It would be much appreciated:)