Miners do not obey certains orders

dwarf-fortress

I've started my fortress and dug one level down and cleared it out without a problem but created stairway on third level and unable to dig the tile under it? I can see it and designate to be mined but miners aren't doing the task. They are sitting inactive and if I designate anything on the current levels to mine they do it without issue.
The mineral below is white sand so they should be able to dig that up right?

Best Answer

It sounds like you may be having trouble, not with your miners per se, but rather, how Dwarf Fortress Handles elevation changes.

Each Z-level (the map at a given height) has both a "wall" and a "floor" tile. Stairs in Dwarf Fortress need to account for both of these - the wall must be an "up stairs" tile, and the floor must be a "down stairs" tile.

The Dwarf Fortress Wiki has a great visual example of this, as a side view:

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