Video prompt: an R&B-style performance featuring a keyboardist, drummer, and a female vocalist. The performance is smooth, with the keyboardist providing a smooth accompaniment to the vocals and the drummer keeping a steady beat.
Defect: Deformation (any reason involved with a movement)
Explanation: As the woman sings, her hands move expressively, but both hands undergo rapid, unstable blurring and shape distortion. This gives her hands an unclear, fluctuating appearance, as they continuously shift and lose definition in an unnatural way.