Current 1.8

None

The Mark as Underground feature appears to work correctly in the editor, but it does not function as expected when running the game on a server.

Steps to reproduce:

1. Make a hole in the ground.

2. Place objects inside the hole.

3. Mark the objects as underground.

4. Verify that the objects work correctly in the editor.

5. Run the game or connect to a server.

Expected result:

Objects marked as underground should remain hidden when they are below the ground.

Actual result:

Objects render in and out when playing on a server, even though they are marked as underground.
In editor they work fine.

Additional information:

The video example uses mods. The objects are marked as underground, but they still exhibit the same rendering issues.