Hi there! Whenever you create a NavmeshBoundsVolume, a RecastNavmesh actor will spawn in your scene as well. In this actor, you can change all settings for navmesh. What you’re looking for is at the bottom of the list, where you can change the behavior of navmesh from static to dynamic. This will make the navmesh reload affected segments in real time.
If you have problems with AI pathing beyond that, use the NavLinkProxy actor to make sure the AI knows how to use special segments of the navmesh (such as doors, precipices, etc.)