Cloth bunches up on itself when I try to simulate it

Hey guys,

So I’m just trying to give a character a skirt, but once I set the cloth simulation to the lower half and bake it, it just bunches up on itself. Here are a couple of stills to show you what’s happening:

It only does this when I have collision turned on with the body underneath, so I imagine it’s some setting in there that I don’t know about.

Any ideas?