I'm a new TC16 pro user. I'm trying to create a wing to fuselage fairing for an aircraft drawing. I've made a loft using 4 2D profiles which produces a good approximation to what I want. When I try to refine it by adding guidelines (3D splines) the loft does not attach to the guidelines but behaves as if they are not there. Is this because the guides are not attached to the 2D profiles? They look as if they are.