When I create an anchor point for a layer where I cut into the mesh it treats the displacment as an extrusion when it isnt. So for the metal edge wear, the deepest part of the cavity is affected by the mask and not what would be the exposed edges, and for the dirt generator, its applying dirt to the outside of the recessed area and not the actual recessed area. It's treating it as extruded height instead of a recessed height.
I've tried raising the height to see if the effects are reversed, and nothing changes. Its not flipping the height its just treating everything as raised.