What is wrong with the doll on the island of misfit toys in Rudolph?

On the island of misfit toys there is a polka dot elephant, a Charlie in the box, and a boat that can't stay afloat. What is wrong with the doll?|||"A Dolly for Sue (as she calls herself)" is a seemingly normal girl rag doll with red hair and a red gingham (checkered) dress. Her misfit problem is never explained on the special, but was possibly revealed on NPR's Wait Wait鈥?Don't Tell Me! news quiz show (broadcast December 8, 2007). The show revealed that Rudolph's producer, Arthur Rankin Jr., says Dolly's problem was psychological, caused from being abandoned by her mistress and suffering depression from feeling unloved.