UV map change converting extrusion to polysurface

Rendering
1

Converting an extrusion with the right UV map to a poly surface the UV map became crazy…no comment…some help?

Capture Extrusion uv map
Capture Extrusion uv map1401×713 44.5 KB

Capture Polysurface from Extrusion
Capture Polysurface from Extrusion1541×648 53.4 KB

2

since extrusions and surfaces are different, I’d expect the mapping to change. Simply redo your mapping on the converted extrusion.

3

I see, ok thanks,
Roy