Sometimes it's when I click on my inventory, other times it's when I open a dresser. Once, the game froze while I was just running around town. All of the freezing starts when I upload lightsabres and blue pikmin hats.

Can someone tell me what the potential reasons for the game freezes are? Is there something (besides not downloading hacked DLC) that I can do to prevent it?

*By the way, I'm new to this board (I regularly post on Gamefaqs), so if I made some kind of mistake, I apologize in advance.