Data Reference Profiles now zero and disappeared

[ralstogj]

Hi all

I have a model where I cut design profiles for the surfaces and corridor in the model drawing for modelling only and then data referenced the alignments and cut profiles off the finished model and subgrade surfaces out to a different drawing to have all the long section drawings cleaned up by another staff member. This all worked to start with and I could see the corridor model subgrade profile lines fine. However coming back to the drawing a couple of days later all the subgrade profiles have disappeared. By disappeared I mean all the lines are still there when you go into the profileview properties but they max and min elevations are zero hence they do not appear in the profileview.

Has anyone else found this issue and a work around. i should mention I am on 2012 and also am referencing the subgrade profiles in the profile bands for level information. 

[smatt]

Did you find a solution to this?

[kcobabe]

Try Syncronizing them.  I have had this happened to me in the past.  It would seem that when drawings get to complex C3D will skip over the sync that it's supposed to do when it opens a drawing.  Kind of a pain, but just needs to be done.