devtrackers.gg
The layers are 2D only, hence height or depth is not taken into consideration. It works as intended. (Even though it's lame, i know)
Oh :/
That's a shame Kinda breaks part of the ecology management bit when making a mine destroys the ecosystem above it, as if we where actively trampling the grass n stuff.
3D Layers would require quite some work and would strain the simulation resources usage even more, i don't think even more performance issues is what anyone wants at this time. We probably take another look at that later, but for now it's just working as designed and intended.