AutoCAD Civil 3D

[#1]

I had that happen as well. I noticed that it was because the parts list had been carried over through several versions of civil 3D. I believe it started from 2007 Civil 3D. So I did the same as you and started from the begining and recreated all my parts and rules. It took a while but it fixed all the errors. Before I did it, I tried going through all the routines that are set up to convert the old stuff into the new format, but it was still giving me problems.

[#2]

Thanks for all of the replies. I was able to workaround by swapping parts (finally was able to do that). I simply used NO FRAME structures and all of my structures defaulted back to my finished grade for the rim elevations.