I successfully placed a civil cell in my design. I then deleted it using the fly-out menu from the civil cell.
Upon returning to the drawing and trying to place another civil cell I get the following dialog/message (which will not stay closed) and then Power InRoads has to be closed using task manager..
"Civil Cell is invalid and cannot be placed"
Any Ideas on how to resolve this? No evidence of the civil cell shows up in Project Explorer. I opened/closed/compressed the file, etc.