So, I was hunting dragons with the blades. This last dragon I just fought was at the Autumnwatch Tower. After one it hit it flew up into the sky and I began to absorb its soul. The dragon was still alive and fighting after I had it soul. It was all skeletal and what not. Then it crashed into the grown on it's back and disappeared underground. I never killed it but I took its soul, I'm not sure what happened other than maybe I had killed it before and never got its soul the first time.
What do you guys think? Has people talked about this happening to them before?