Video prompt: In a snowy landscape, a group of friends embarks on a thrilling sled ride down a hillside. Laughter echoes as they dodge trees and snow sprays up around their speeding sleds.
Defect: Deformation (any reason involved with a movement)
Explanation: The distant crowd appears blurry and loses its distinct boundaries as they move, eventually becoming an unrecognizable shape, which is unusual as individual forms should be distinguishable despite distance.