:? mmm...i saw the pic and i think the problem might be that the crate is too big.
I know you wanted to give her more space but at this point she's still learning and like a kid if you give her too much freedom she might take advantage and abuse
With all that space she probably thinks is ok to go potty since in the X-pen the space is about the same and she is allowed so why not in the crate too(same space )....Good luck. I'd try limiting her space more.