Ok, so we all know that making objects in the level editor with enabled preview would be miss organized layers.
So for example let's say you made the walls.
Then you add a background to it and this is what it looks like and appears to have background previewed on top of walls.
So to fix this problem I have found a trick solution that fixes this problem.
First. Click on save.
Then. Click on revert to reload the map.
And this is what it should look like a simple trick to fix miss organized layers by simply reloading the map.