Animals walking through navmesh in custom map

When I bake a navmesh in a map with custom objects, like buildings or floors, the animals walk right through them. This is a big problem for me since I need animals to make my shrines (loot towns) dangerous, and half the map is covered in these buildings and custom floors/objects.

Is this problem only occurring to me or is it a bug that I have to wait til the next update to be fixed?

 

you need to link navimesh to levelobject(root)

 

Also make sure that your objects are on a layer that the navmesh takes into account.