My overlay/striping section disappreas when I change corridor from "design" to "final top mesh"

Hello, 

I changes my corridor from "design" and "final top mesh" and my overlay/striping sections disappeared. I am changing the corridor to create a terrain. Does anyone know what I am doing wrong?

See eastbound lane (right side of the centerline). The first screenshot is on final top mesh and the second one is on design.

Thanks

Amman