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  1. Minecraft: Java Edition
  2. MC-164254

Fish magically gain momentum and bounce up to 10 blocks in the air on slime blocks

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    • Icon: Bug Bug
    • Resolution: Unresolved
    • None
    • 1.14.4, 19w42a, 1.15.1, 1.15.2, 1.16 Pre-release 8, 1.16 Release Candidate 1, 1.16, 1.16.1, 20w28a, 20w30a, 1.16.2 Pre-release 1, 1.16.2 Release Candidate 1, 1.16.2 Release Candidate 2, 1.16.2, 1.16.3 Release Candidate 1, 1.16.3, 1.16.4 Pre-release 1, 1.16.4 Pre-release 2, 1.16.4 Release Candidate 1, 1.16.4, 20w46a, 20w48a, 20w51a, 21w03a, 1.16.5, 21w05a, 21w05b, 21w06a, 21w07a, 21w11a, 21w14a, 1.17 Pre-release 2, 1.17, 1.17.1, 21w42a, 1.18.1, 1.18.2, 22w12a, 1.19, 1.19.1 Pre-release 5, 1.19.2, 22w43a, 1.20.1, 24w45a
    • Confirmed
    • Mob behaviour
    • Low
    • Gameplay

      The bug

      If any fish is on a slime block, it will start bouncing, and slowly start accumulating momentum until it bounces ~10 blocks high every time.

      How to reproduce

      1. Summon a square of slime blocks below your feet
        /fill ~-3 ~-1 ~-3 ~3 ~-1 ~3 minecraft:slime_block
      2. Obtain a cod, salmon, pufferfish, or tropical fish spawn egg
      3. Spawn the entity of your choice on top of the slime blocks and watch it closely
      4. Take note as to whether or not fish illogically gain momentum when bouncing on slime blocks
        Fish illogically gain momentum when bouncing on slime blocks

      Expected behavior

      Fish would not be able to illogically gain momentum when bouncing on slime blocks.

      Examples

      Here are some examples in videos:

        1. 2019-10-21 15-44-14.mp4
          4.79 MB
          Joakim Kvarme Thorsen
        2. MC-164254.mp4
          4.44 MB
          [Mod] Avoma
        3. MC-164254.png
          849 kB
          [Mod] Avoma
        4. Minecraft 1.14.4 2019-10-22 18-39-25.mp4
          5.49 MB
          [Mod] violine1101

            Unassigned Unassigned
            JoaBro Joakim Kvarme Thorsen
            Votes:
            12 Vote for this issue
            Watchers:
            10 Start watching this issue

              Created:
              Updated:
              CHK: