I recently encountered an issue with my drainage structures not adjusting to corrections to sump elevations. I had just made the transition from C3D 2007 to C3D 2008, so I assumed that there was an issue between the two drawing; however, I could not find help on this topic.
I failed to remember is that for the project I had created a group of custom structures in my pipe catalog to match state standards. When the transition between 2007 and 2008 took place, my custom structure files did not transfer into the 2008 Pipe Catalog. Once I dropped the files into the pipe catalog for 2008, everything worked great.
I figured that I would post my experience, just incase someone else encounters this issue.
Have a good one,
Daniel P. Hill, E.I.