We have a Civil 3D project created in Civil 3D ver 2012. We recently upgraded to Rel 2014. I opened a cross section file and it completely blew out al the C3D opjects. All sections, existing ground and storm pipes are gone. Is ther any way to recover the drawing? I restored the original version of the section sheet but the cross sections are not there.
Try opening up the drawings that are data shortcut in and save them. Then reopen the drawing and synchronize everything. You might want to try just synchronizing before doing the aforementioned.