Why is PLY 3D model broken animation when export?

PLY 3D models show broken animation when exported because the PLY format is static and doesn’t support storing animation data (e.g., keyframes, bone rigs). PLY only saves basic geometry (vertices, faces) and static properties (colors, textures)—any animation in your original model gets lost during export, leaving a static model that can’t play animations. To preserve animation, use formats like FBX, GLB (glTF binary), or Collada (.dae), which are designed to store both geometry and motion together.