Video prompt: An exuberant Oktoberfest event immersing participants into a river of tradition and joy, adorned in alpine attire with polka melodies enlivening festival grounds.
Defect: Deformation (any reason involved with a movement)
Explanation: The hands, heads, and arms of the crowd continuously undergo shape deformation, blending unnaturally with the glasses they are holding. Both the hands and the glasses appear blurred and fused together, creating an indistinct and unrealistic visual effect.