I get it all the time. I'll come around the corner with a shotgun, shoot the guy at point blank, only for him to seemingly take the hit. Then, I'll strafe to the left, stab him, it makes the motion, and the sound, only to have him miraculously stab the air to my right and kill me. Upon watching the Kill Cam I see that he dodged the shotgun blast, dodged the knifing, and stabbed me cause apparently I didn't move in that small amount of time frame. Either way It's definitely getting annoying. That's only in the case of Host Vs Random Person, all the other battles when not fighting a host are spot on.