I am currently working on a mod that involves a ship parked at a dock. Currently I have the navmesh completed for all the inside decks as well as the dock ramp and part of the deck. The problem is with the rest of the deck. The navmesh will not lay down where I need it to. The best way to describe the problem is that it appears the edges of the mash are being stopped by an “invisible wall“. I cannot drag the edges (or create new ones) in certain areas. Anyone have any ideas what may be causing this, or perhaps be willing to take a look at the mod itself?
Thanks.

You've reached the cell border. Read this -

http://www.gamesas.com/topic/1392295-navmesh-problem/

After you mentioned the cell border I had to go back and double check. Sure enough. I didn't realize I was that close to it. Just wasn't paying attention, I guess. I knew just how to fix the problem. Everything works fine now. Thanks.