Hey YJ,
Just for fun, the next time you get the "immovable object" and the free drop back at the tee, try looking at the replay and see what happens. I`ve only had the immovable object once, S.A. #1, when my drive rolled up to the retaining wall of the brook but not in the water.
I was sent back to the tee for my do-over, but I replayed it to see how close I came and after the replay, I was set by the brook as if I`d taken a drop from the obstruction, playing my second shot :p.
I sent a bug report and wondered if that was how to get the "option" of where to play the next shot from in that situation, to just hit the "replay" ;).