I'm using Power GEOPAK SS2 (08.11.07.615). I have 4 adjacent stripping components in my corridor: topsoil, pavement left, pavement right, topsoil. The dynamic cross sections within roadway designer look fine, but in the traditional GEOPAK cross sections drawn from the dtm, these components do not trace existing ground - they simply connect in a straight line between the end points. If I use a single stripping component - such as topsoil stripping across the entire section, then the cross section linework tracing along under existing ground as expected. Adding a second adjacent stripping component is what seems to cause the trouble.
The stripping components don't have to be directly adjacent to each other. If I remove the center pavement components, the remaining - not touching - topsoil components do not both draw correctly.