Video prompt: A lively surf competition where surfers glide and maneuver across towering waves, judges and spectators watching from the beach as athletes exhibit skill and grace.
Defect: Deformation (any reason involved with a movement)
Explanation: The surfer's body undergoes shape distortion while riding the wave, blending indistinctly with the surfboard and foam. The surfer, board, and surrounding foam become blurred into a single, unclear mass, making it difficult to distinguish individual elements clearly.