NavMesh doesn't generate bounds around some static meshes

Hello! I found that some instances of static meshes do not generate ‘holes’ in NavMesh around them.
as a result sometime AI got stuck cause their waypoints are inside of meshes.
I was comparing my static meshes and their collisions, and everything looks totally same.
I know that I can make NavMesh Modifier Volume etc, but I actually want to find reason why that’s happening.
I haven’t changed anything in navmesh details, except set DrawOffset to 0, and checked Draw Path Colliding Geometry.

Hey chipsuev,

When it comes to getting the Nav Mesh to generate on static meshes, it often comes down to the meshes collision, and playing with Nav Mesh settings until you can get it right.

Are you using a mesh that comes with the engine, or is this something you’ve modeled yourself?

Have you experimented with different types of collision on the static mesh to see if there is any difference?

Would you be able to provide me with the asset so I can test the issue using the mesh that you’re working with?

Thanks

hey Sean,
I’ve been experementing with NavMesh’s details last days, but it didn’t give any results. I’ve also tried to change collision presets with no luck. Looks like the problem is in my custom made meshes.
Thank you!
https://drive.google.com/drive/folders/0B18txmDP0z31bUtNbkE3LTlZeGc?usp=sharing

Hey Sean! I’ve found solution - it appeared that i haven’t checked Has Navigation Data in Static mesh.