When you transform the vertices of an object the UVs do not move in UV space by default. As a result, textures on your object may become warped. To avoid this, turn on the Preserve UVs option in the Tool Settings Editor for any of the transform tools you are using.
| Preserve UVs | Translate | Rotate | Scale |
|---|---|---|---|
| Before |
 |
 |
 |
| Off |
 |
 |
 |
| On |
 |
 |
 |
By turning on this option, Maya automatically transforms UVs in the UV space relative to the transformations taking place in the scene view.