Extract corridor solids does not work for custom subassemblies. It seems to only export the link codes.

I tried on a smaller section of my corridor.. it just creates a blank file. It seems to read all the shapes as per below. It just can’t export them..

Acknowledged by Autodesk as Bug see post below

http://forums.autodesk.com/t5/autocad-civil-3d-general/extract-corridor-solids-does-not-work-for-surface-links/m-p/5269837

When displaying link codes/point codes for subassemblies in civil 3D the codes overlap!

Makes it very difficult to visualise complex assemblies in Civil 3D