Please do not judge me on this simple solution. It may only be a release (or well pre-release) issue. But I had hit the flag stick from various distances between 15-175 yards give or take. My achievement popped from a simple chip in the first cut off the green. If you have made a great shot from far out and been frustrated by it not unlocking I believe just getting on the green and putting off the other direction to be in the fringe and/or first cut around the green OR making a shot come up just short of the flag in the rough......well that seems to do the trick for now. I took me 10-15 sticks and the close range popped it...I was not alone in this happening. I hope I have at least have been of some help to at least one person.
Happy hunting