Can't get these curves to join

I can’t get these curves to join. The blue one is through points, taken from another drawing. The green ones are control point curves, newly created. i don’t see space between end points. i do this regularly but i must be missing something on this one.
LA profile.3dm (70.2 KB)

Hello - run SelClosedCrv - you’ll see why it does not work.


thanks pascal. i thought i had looked to make sure they were open curves, but missed that one.