Hi ferrous.
I have tried a couple of things.
Manually re-doing the ball.
Manually re-doing deleting and placing all colliders.
Ball does not collide with paddle when the scene start. Ball will only move up on left mouse click and start colliding with paddle after.
At the time of "game over" or when it trigger the collision, the ball is still on top of the paddle. If you take a look at the last picture, the ball is on top of the paddle, not colliding or triggering the game over scene (which is the bottom of the screen) but it still trigger the game over scene. It's like there is an invisible collider colliding with the losecollider.
I am quite sure I am doing something wrong but I can't find out what it is.
:(