Are there any troubleshooting techniques for when a cross section goes blank except for the CL point? I have been working in the corridor file for a week or so. It doesn't seem like you can't delete previous section views and the sections display if the corridor dgn is referenced into another drawing.
I would first make sure that you have a 3D model, and you can see the corridor in the 3D model. If you still are having trouble with that, please post your dgn and reference files. I will look at the dgn to see what I can find.
Holly
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