InRoads SS2 Surface Creation Anomalies

I have a 4 lane interstate with 4 ramps and some structures.  I'm trying to perform the End Area Volume so that I can create the Mass Haul Diagram that the client wants.  Towards the end of our section of the job is a large structure that I am trying to model the fill for the abutment.  I followed another post on here with a video to come up with a model for this.  Since my proposed mainline goes over this new corridor, I copied the mainline corridor and ended it at the beginning of this new abutment surface.  When I tried to create a surface out of the mainline, ramp and abutment corridors, I am getting a some surface anomalies away from the abutment area.  Does anyone know what could be causing this?  I'm pretty sure the anomalies are happening with the copied corridor with just the ramps and not including the abutment corridor.