The map that we have builds navigation for about 100k (“Building Navigation (100,000)”), which takes a few minutes. What is generally recommended for large maps when it comes to navigation? I have heard of procedural navigation, but haven’t seen much about that.
There is a Tiled Nav mesh solution Built into Unreal 4 I thought?
Just to update, we are now using NavigationInvokers for our navigation 
The nav-mesh is still placed in the world, but navigation is only generated when invoked.
@Jamendxman3: Cool thing … how big is your map (i.e. 2km x 2km or 8km x 8km)?
I am working on something at the moment and I am just interested in your map size. Thanks.
Our navigable area is about 2.5km x 3km.