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  1. Minecraft: Java Edition
  2. MC-239851

Upgrading old worlds causes leaves to change to surface builder blocks

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Details

    • Bug
    • Status: Resolved
    • Resolution: Fixed
    • 21w43a, 21w44a
    • 1.18 Pre-release 1
    • None
    • Confirmed
    • Datafixer, World generation
    • Important

    Description

      The Bug

      Upgrading old worlds to 21w43a some leaves changed to surface builder blocks (grass blocks, dirt, sand, sandstone etc)

      Reproduce

      • Create a world in 1.11.2 with the seed: 7344104151492854341
      • Fly towards 104 ~ -123 (You should see a swamp biome)
      • Leave an upgrade your world to 21w43a
      • Fly towards 266 ~ -80

      World Download

      Here is a world download from the world converted from 1.11.2 to 21w43a. Go to this location to see the issue: /execute in minecraft:overworld run tp @s 273.95 77.97 30.17 6.60 41.25

      Observed Result

      Some of the leaves on the swamp trees changed to dirt/grass blocks

      Expected Result

      The leaves wouldn't convert to grass blocks

      Attachments

        1. 2021-10-27_11.21.37.png
          2021-10-27_11.21.37.png
          3.80 MB
        2. 2021-10-27_20.15.36.png
          2021-10-27_20.15.36.png
          1.59 MB
        3. 2021-10-27_20.31.19.png
          2021-10-27_20.31.19.png
          1.46 MB
        4. 2021-10-29_10.10.26.png
          2021-10-29_10.10.26.png
          1.54 MB

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            People

              Unassigned Unassigned
              Protocat1208 Platon
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              22 Vote for this issue
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              Dates

                Created:
                Updated:
                Resolved:
                CHK: