Video prompt: A coffee taster samples a new blend, noting flavors expertly.
Defect: Deformation (any reason involved with a movement)
Explanation: The **point of contact between the hand and the cup** exhibits noticeable **blurring and twisted deformation**. The hand and the cup merge unnaturally, making it difficult to distinguish their boundaries. Normally, the textures and edges of both the hand and the cup should remain stable and distinct during interaction.