Pattern Split Line along Curve

Hey guys,

Im trying to design a road-like sketch using split line and offset surface to then, generate UV's in blender. Now, i need to pattern the inside dashed line along a curve. I've created a composite curve, and the initial entity to pattern. The problem is that the pattern doesnt follow the curve !

Tips ?

The curve

The entity : (it is an extrusion for now)

Thanks in advance !

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