Video prompt: A couple dances under fairy lights at an outdoor wedding reception. The man is in a suit without a tie, and the woman wears a long red dress. Their movements are intimate and joyful, and the surrounding guests clap in rhythm. The night sky sparkles with stars above them.
Defect: Blurring (abnormal blur, e.g. one bird of a group blurs)
Explanation: The faces of the people in the video are unusually blurry, even though other parts of the scene appear clear.