Terrain Model from LandXML

Hi

Im trying to import a LANDXML file as a terrain model. I go file import --> terrain model LandXML and it imports perfectly with triangles and contours that i can edit. I can also draw a profile over the terrain and all works as normal.

However the terrain model doesn't appear in the project Explorer menu under Civil Model and subsequently cannot be made active when attached to other drawings.

Is this normal or should i try re import the terrain from the triangles after copying them manually into the drawing file?

Regards

David Marx