Well, I found out today what the case was.
Apparently one of the teams had some sticky stuff on their gripper/kicker mechanism that managed to adhere to the ball, which caused the ball to slow down on the way down the ramp and get stuck in the space in between the ramp and the hanging pole on the tower (since the ball didn't have enough velocity to just simply bounce down). GooGone did the trick of getting rid of the sticky stuff on the ball
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