I’ve tested on both my current project and a fresh project, but creating a foliage type from a static mesh, setting it to block all, and editing the ‘Custom Navigable Geometry’ option to “Yes” or “Even if Not Collidable”, then placing it into the level results in foliage that does not affect the nav mesh at all. I’ve gone back and followed the exact same steps in 4.26, and the foliage does indeed block the nav mesh, however in UE5 it doesn’t.
Has anyone managed to get foliage to work with the nav mesh in UE5 yet?