AI won’t use auto-generated NavLinks when Area Class is set to custom Nav Area

I’m running into an issue with auto-generated NavLinks from the Recast NavMesh.

  • I have auto-generated nav links enabled in my RecastNavMesh.

  • For the Up direction, I’ve assigned my custom NavArea_Climbing (subclass of UNavArea).

  • In my Behavior Tree, I use a MoveTo node with the Filter = None (so it should allow everything).

  • However, the AI will never traverse those generated links when their Area Class is set to NavArea_Climbing.

  • If I change those same auto-generated links back to Default area, then the AI happily uses them.

    For context, my other nav areas with filtering works fine when it is generated on the polygons via nav Modifier.