AutoCAD Civil 3D :: Correcting Ditch Location

I had created a corridor using the attached assembly with conditional cut/fill and SlopeToSurface SA, the cut condition provides a ditch SA at cut only.  Then had the Ditch Bottom Profile to follow a ditch profile that I created, and flows toward the increasing chainage.  The horizontal offset and elevation of the ditch runs perfectly fine as desired, except between Sta. 0+465 (cut section) and Sta. 0+470 (fill section), where the ditch ties back to the edge of shoulder instead of going toward the outside (as shown in the blue lines).

My question is, do I need to make a transition between the cut and fill sections?  If so how much effect and details is needed as I have a few other locations with the same issue.