Video prompt: A calico cat balances delicately on a narrow fence, navigating the boundary with perfect feline agility.
Defect: Deformation (any reason involved with a movement)
Explanation: As the cat moves, the motion of its hind legs is highly unnatural and poorly coordinated. The two hind legs overlap in an odd and unrealistic way, which disrupts the normal alternating stride pattern expected in feline movement. This inconsistency makes the motion appear artificial and disjointed.