How to make character navigate around navmodifiers they are blocked from?

Nonder

I don’t seam to be able to get that to work. Every character ignores just moves through NavModifier that I set to CharacterOnly.

Also generated nav mesh is all one colour (default green) my navmesh modifier doesn’t change colour of mesh, so I suspect that modifier isn’t generating a mesh for itself, and my characters are simply using standard one…

Any ideas ?