[Inroads SS3 *.674] No auto-attach to 3D when referencing terrain model.

Hi.

I am working with corridor modelling based on a 2D seed file. When I am referencing a terrain model into the 2D model it does not get auto attached to the 3D model. 

Just to be sure I followed the Terrain Element Display lecture, but I could not get the same results. http://learn.bentley.com/app/VideoPlayer/LinkToIndividualCourse?LearningPathID=106084&CourseId=111494&MediaID=5005275

After the initial post I found a "workaround". This workaround can be seen in the second uploaded video clip. If I detach the terrain model and then undo it will be displayed in 3D. All tests were done in Example workspace with files delivered by Bentley.