Searching for "not showing up in dynamic cross section" or something like that, I found another post that seemed to promise to answer my question but I suspect that is a different problem altogether.
Using Geopak SS4, I have a file called drainage-x.dgn that holds existing drainage, complete with active profiles and correspondent 3d elements. The plan elements use feature definitions for proposed drainage (because that's all I have access to at the moment), and I've modified the 3d elements to indicate that it's existing instead. They display just fine in the 3d models. But these aren't showing up in my cross section viewer. In Civil Standards, I have all features selected to be rendered. I'm not sure what else to try. Any thoughts?
I should clarify that it's pipes that I'm looking for, and it's not only that it doesn't display correctly in the cross section viewer but it doesn't show up even as a single point where the element and profile intersect the cross section.