Subassembly cannot be imported from composer properly

[Anonymous]

Not sure since when, the previous imported subassembly porperties cannot be modified in civil 3d and importing a new subassembly from the composer is also having issue, cannot see imported shape, just a red circle.

Someone said because of the SP2 installation, can anybody response and any soution. I have to go back to SP1 for now. 

[troma]

This was recent:
http://forums.autodesk.com/t5/AutoCAD-Civil-3D/Custom-subassembly-import-error/td-p/4359837

I don't see any solution there.

[Anonymous]

This solved my problem

http://forums.autodesk.com/t5/AutoCAD-Civil-3D/Civil-3D-2013-Servicepack-2/td-p/4357336