Video prompt: A timelapse of urban traffic at night, cars forming streams of light as they navigate through a bustling cityscape, skyscrapers glowing against the dark sky.
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 light trails in certain sections don’t flow smoothly along the road, with some trails appearing to shift or curve unnaturally.