Opened a cross section file for a project. All of the Civil 3D data related to the sections is missing (the sample lines, sections, pipes in section view) The pipe network and surface data short cut is fine. I found a .BAK file and copied it to my C drive. Renamed the file to DWG opened it and all the section data is shown. The sections show the existing road, pipes and section data. I copied this file to the server into the proper directory. Opened the file and all the data disappeared again. When the file is opened on my C drive it works properly.
Any help would be appreciated.