Video prompt: Leaves flutter gently to the ground in a scenic park, children jumping into piles with exuberant joy as their parents watch nearby, framed by the colors of fall.
Defect: Deformation (when Object is involved in an act,  anything in this process that's weird. e.g. people walk into a wall. "Walk" is an act)
Explanation: The child’s body and the leaves undergo gradual deformation over time, creating an unrealistic effect as their shapes should remain consistent.