@CDNGADESIGN -read through this recent thread, which address some of the issues your running into.
https://forums.autodesk.com/t5/fusion-360-design-validate/problem-creating-a-complex-shell/m-p/96815...
for the immediate problem, the profiles for the 2 lofts that meet at that edge are both formed from a sketch. in order to control the curvature condition of a loft that meets another loft, you have to use an edge of the surface for the profile, not a sketch. this sometimes requires a bit of work to get the edge broken up in a way it can be used.
another thing to keep in mind is that lofting a double curve surace in the same go as a ruled surface can sometime produce sub-optimum curvature, so you may need to re-evaluate how you are breaking up your surfacing operations.
