Using Prostructures Connect edition to construct a rebar model, the program crashed and some rebar sets within one section have become inoperable/can't alter/can't delete.

They have become separate elements (normally when you click on one bar the whole set lights up) but no commands will operate on them as the info bar at base of screen keeps saying 'no element selected'. This has only happened to one section on this model everything else is okay. Tried delete/drop element/made a fence to delete fence contents....nothing will remove these.Please advise.

I reverted back to using version as the version 3 I downloaded from our software centre was continually crashing on this particular file model.