Q: The 3D model mapping uv in the scene is deranged, but why is display normal in 3dmax?

A: First open the material pickup in 3dmax, and pick up something wrong area of the map. View the mapping, and you will discover that the red box in the map is not the full map but part of the picture. Only the full mapping in the scene can be identified and it can’t identify cropping in 3dmax. So this error appeared. You can pull the red box to a full map and reload.