I have my sub-base subassemblies in my road section using a gravel hatch pattern. For the sub-base under the curb it displays correctly. For the LaneSuperelevationAOR subassembly, it does not display. The shape style which I use for the sub-base for the curb and the LaneSuperelevationAOR subassembly are identical. As a test, I switch the shape style to NO_DISPLAY, and the sub-base is turned off on the subassemblies, which is correct. Why would one display and not the other?
I figured out a workaround. The problem appears to be when the base height is set to zero, the sub-base hatch will not appear. I changed the base height to 0.0000000000000001 and the sub-base hatch appeared. This must be a bug in the software. The zero height assignment for pavement 2 does not affect the hatching for pavement 1.