Like Dagon said, it is not a conforming item. When you have conforemd it to V3 or any other figure and it does weird things just click Conform to again and select None from the list. That will put your item back into it's default position. With Vicki's changing Ponytail you simply select the body or the base of the hair, go to Figure - Set Figure Parent and select the head of your model. After that the hair stays in place when you pose your model.

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