Thanks for reading. There is a sound whenever Fraggles hops that sounds kinda like a joint popping. She is only nine months old and I have noticed it for as long as if had her almost. Which has been since she was five weeks old. It does not seem to affect her. She loves to race around can turn on a dime and can binky about 3 feet in the air. It just bothers me because I worry about future joint problems. She is currently destroying my bathroom so I know she is happy at least. Any advice?