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  1. Minecraft: Java Edition
  2. MC-213802

Copper is not upgraded correctly from pre-21w05a worlds


    • Icon: Bug Bug
    • Resolution: Fixed
    • 21w05b
    • 21w05a
    • None
    • Confirmed
    • Datafixer
    • Very Important

      Copper blocks aren't upgraded correctly when loading a pre-21w05a world in 21w05a. Some blocks disappear, and the fully weathered copper blocks revert into the penultimate weathered block stage. This is because the blocks were renamed and the block IDs were changed, but the upgrade paths weren't adjusted to accomodate that. This also affects their item forms.

      To reproduce

      1. Load this world in 21w03a: 2021-02-03_19-53-19_Ghost Copper.zip
      2. Upgrade it to 21w05a
        Some blocks are missing and the fully weathered blocks have jumped back a stage

        1. 2021-02-03_12.51.08.png
          794 kB
          Bobby N.
        2. 21w03a.png
          559 kB
          [Mod] violine1101
        3. 21w05a.png
          485 kB
          [Mod] violine1101

            Unassigned Unassigned
            Bobbyawesome101 Bobby N.
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