Problem:
If anyone else experiences trouble; this is how I fixed it:
Start by going into the ingame editor ctrl-f12.
Then place a ramp so it adds some steps. It needs to line up visually.
Then select NAVMESH from the top bar and then Regenerate Sector.
Finished Product
EDIT: Images don't seem to be loading for me but you can see them if you open it in a new tab.
EDIT 2: Using the fix seems to cause a problem where when recruiting I only have the portrait of the last recruited member. The others cannot be selected via click and drag but when clicked on they can be given orders.
