The Bug

The mineshaft dirt room when generating above y=0 doesn't generate with dirt instead generating with natural stones

Reproduce

• Go to seed: -795131460380488252
• Go to any of the locations listed below

  /execute in minecraft:overworld run tp @s 7627.16 41.57 -120.58 -1725.30 23.85
  /tp @s 3732 1 53
  /tp @s 5400 3 198
  /tp @s 6087 17 88
  

  Notice that despite being above y=0 or at the border no dirt room is generated

Expected Result

The dirt room would generate with dirt