Video prompt: An old steam train winding through a picturesque countryside under puffs of billowy smoke, echoing a bygone era's romance and adventure.
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 railway is supposed to stay still when the train moves, but it has been moving all the time