If you're going to make The Lone Story a requirement to play SP circuit how about actually telling us in game? "Normal mode for this node must be completed first" doesn't really #*!%ing cut it, and it's incredibly frustrating to clear normal mode only to be given the same message.
edit: I completed every duviri node in normal mode and every duviri SP node is still locked. Boy do i love the idea of waiting another 6 weeks to get these incarnons again