I am on the sorrow pass part and got the ball to block the first laser and then was able to block the second one (laser)and went back where the first one landed and then the ball disappeared, I tried to go back around and see if the ball is in the original spot but it is not. tried to go back to the beginning of the game and other spots and then come back and the ball is still not there, not able to get up the cavern to get to the sunstone. Any thoughts or suggestions?