Difficulty selecting edge with shift+ctrl RHINO 8

Hi Guys , i have just upgraded to rhino 8 , im having problem selecting edges with the shift+ctrl
this is in Rhino 7


this is rhino 8 , sometimes the edge can be selected but its like 1 out of 10 times

is there some option that i did not turn on ?

Hi Micky - it looks like, maybe, the selection filter is set to Sub-Objects so Ctrl-Shift selects top level ones?

Also, is that object in a group?

-Pascal