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  1. Minecraft: Java Edition
  2. MC-238076

UpgradeData in chunk is not migrated to new world height


    • Icon: Bug Bug
    • Resolution: Fixed
    • 1.18 Pre-release 2
    • 21w39a, 21w40a
    • None
    • Plausible
    • Datafixer
    • Important

      The problem and the fix:

      The Level.UpgradeData.Indices CompoundTag inside Chunk is not being upgraded to the new world height at all in this snapshot. All the keys inside Level.UpgradeData. Indices must have 4 added to them if the chunk is being migrated to the new world height format.


      I attached a world zip (new world from 1.7.10) to this report containing a double chest @ (232, 72, 261) that will not upgrade properly if loaded. You may have trouble loading the world due to MC-238056

            boq [Mojang] Bartosz Bok
            Spottedleaf Spottedleaf
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