How do I stop a static mesh from affecting navmesh?

When I place a cube on some navmesh it is treated like geometry and cuts a hole in the navmesh. How can I turn this aspect off?

I just want to use a cube as a temporary vehicle mesh.

Or… is it good that it’s making this hole for avoidance? normal bipedal characters don’t.

Did you try turning off collision in your static mesh - haven’t tried it myself yet.

You can uncheck “Can Ever Affect Navigation” in the Collision Category of your static mesh.

36956-navigation.png

Presumably it needs that though. I mean, other characters have collision.