I’m having a similar issue, however i don’t really need multiple depth layers. the problem i’m running into as illustrated in the video below, is that destruction forces are being propagated to chunks that haven’t been damaged. How would i prevent this? You’ll notice in the video, the proper portion of the mesh is destroyed, but the shell that remains intact still responds to impact forces.
[EDIT] - just figured it out. had no clue there was a destructible example content level. the solution was a simple check box appropriately named ‘world support’