I must be tired or something because I have done this so manny times before, but today for some reason..I just can't get the SOP solver to break my constraints.. what did I forget ?

Turned out that I just had to delete the Constraint Network DOP, make a new one and hook it up and tada it worked..very odd.

The default expression for the ‘Overwrite with SOP’ on the constraint network is incorrect in the latest production build (14.0.201) and causes it to return 1 most/all of the time, so constraints are replaced from SOPs.

You can replace the expression with something like:

$SF==1

They've fixed it in the current daily build, I think.