I had to help my chick hatch yesterday because he was malpositioned, hatching from pointy end, after about 12 hours of trying to unzip. I noticed he won't/can't extend one leg. I try to move it back but it's like it won't budge, and I'm afraid to force it any farther not sure what to do. Never had this problem before. Maybe the result of being malpositioned, not sure. The eggs weren't shipped either there from my own flock.