I asked this question on the main page but I wasn't too sure of the answers. How did the devil bone end up in TTJ after it was sealed after a whole lot of effort by Ming Ye, Ji Ze and Chu Huang? Someone said it was the heart and not the bone or that it was the bone refining seal and not the devil bone that was sealed. However, I went back and watched the scenes in episodes 14 and 15 again and they definitely seem to call it the Devil Bone and that it was out of DG's body only for that set period of time. It even looks the same as what YXW extracts from TTJ. The bone refining seal looks different and was sealed under the water mirror. So I wondered how it came to be in TTJ's body?
Also, is it a plot-hole that Si Ying did not recognize CJM in Shangqing realm when they fought for the bone refining seal in episode 32? Someone said it was because his eyes were different but seems weird that she'd only go by the eyes. Even Di Mian takes one look at him and does a double take immediately.