Profiles and Network trouble

 From:  Scooter (DORMANTVISION)
6083.1 
Gents,
I'm using Network to build the fuselage, but am having trouble near the back.


When I run the network command without the last profile, things go as expected.


When i include the last profile, I get this unexpected edge that runs the length of the fuselage, both top and bottom.


This results in a bad transition across this edge


I believe the problem has do do with the last profile near the engine, which was built from "Freeform" curves and a couple of arcs.


So, what's happening here?
Should I rebuild the last profile?
Any help would be greatly appreciated.

Thanks

Scott