I had the same thing happen to me this year I must of pulled the shot or the deer moved on me.I check the stop were she stood and followed the tracks for a few yards small spot of blood .I went back to the house had some coffee and about a 1hour later took the quad up the mountain and se a few more drops of blood and sure as it was she was about 50 yards from were I shot her,I caught her low but I did find her,gutted and clean her out with course salt butchered her the next day.