The flippers were just rebuilt a few days ago so the parts are new. However, after the rebuild, this same left flipper when hit by a ball while it was in the up position would not be able to take the weight of the ball's inertia so it would bend down slightly and then spring back. Now I seem to have a mechanical issue. As you can see in the video it has a way of "locking" in the upright position.
Any thoughts???
Thanks!