I'm at the third hole in Worms Crazy Golf where it "teaches" you how to put spin on the ball. From the graphic, you left-click and drag left for counter-clockwise spin or drag right for clockwise spin. I tried this and, while it unlocked the achievement for my first spin shot, it doesn't work. Rotating arrows appear around the ball to indicate that the game understands what I'm trying to do, at least, but the ball doesn't roll any differently than normal when it lands.
What do I need to do for this to work?