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  1. Minecraft: Java Edition
  2. MC-133817

Blocks that are placed in downwards flowing water don't properly update water flow

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    • Icon: Bug Bug
    • Resolution: Unresolved
    • None
    • Minecraft 1.13-pre10, 1.15.2, 1.20.1, 23w33a
    • Confirmed
    • Block states

      To reproduce

      1. Dig a 2x2x2 hole
      2. Place 4 water source blocks on the top layer
      3. Place 2 slabs diagonally on the bottom layer
      4. Place 2 kelp in the remaining 2 spots on the bottom layer
        → Observe that the slabs do not become waterlogged after placing the second kelp.
      5. Destroy a block adjacent to one of the kelp
        → The water now updates and waterlogs the slabs.

        1. 2023-08-30_12-09-53.mp4
          5.16 MB
        2. Illegal water.png
          Illegal water.png
          1.12 MB
        3. Kelp.png
          Kelp.png
          1.28 MB
        4. The setup.png
          The setup.png
          1.77 MB

            Unassigned Unassigned
            redstonehelper [Mod] redstonehelper
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              Created:
              Updated:
              CHK: