scrambled UV and texture, mesh

[kjm00006]

Import uv by 3ds max .obj or .fbx

and extract nomarl map other map

but, texture scrambled

Upward the level also breaks the mesh.

☆This error only occurs when importing uv.

How can I make it smoother without broken parts?

[absoluteKelvin]

seems to me that the point order of the source mesh for uvs has changed. meaning that your new mesh you tried to import uvs with is different then the one inside mudbox. Did you make any edits to the mesh ? ex: cuts, weld vertices...etc