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  1. Minecraft: Java Edition
  2. MC-121788

Jump boost, slow falling and levitation don't apply to ridden horses, pigs or striders until after a relog

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    • Icon: Bug Bug
    • Resolution: Fixed
    • 1.20 Pre-release 3
    • Minecraft 1.12.2, Minecraft 17w45b, Minecraft 17w46a, Minecraft 17w49a, Minecraft 17w49b, Minecraft 18w01a, Minecraft 18w02a, Minecraft 18w11a, Minecraft 18w14a, Minecraft 18w14b, Minecraft 18w16a, Minecraft 1.13-pre6, Minecraft 1.13, Minecraft 1.13.1, Minecraft 1.13.2, Minecraft 18w46a, Minecraft 18w48a, Minecraft 18w48b, Minecraft 18w49a, Minecraft 18w50a, Minecraft 19w04a, Minecraft 19w04b, Minecraft 19w05a, Minecraft 19w12b, Minecraft 19w13b, Minecraft 19w14a, Minecraft 19w14b, Minecraft 1.14 Pre-Release 5, 1.14.4, 19w34a, 19w35a, 19w46b, 1.15.2, 20w13a, 20w17a, 20w18a, 20w19a, 1.16 Pre-release 1, 1.16 Pre-release 2, 1.16.1, 1.16.3, 1.16.4 Pre-release 2, 1.16.4, 20w48a, 20w51a, 21w03a, 21w05a, 21w05b, 21w06a, 21w07a, 21w14a, 21w18a, 1.17, 1.17.1, 1.18 Pre-release 1, 1.18.1, 1.18.2, 1.19, 1.19.2, 22w42a, 22w44a, 1.19.3, 23w05a, 23w07a, 1.19.4 Pre-release 1, 1.19.4 Pre-release 2, 1.19.4 Release Candidate 2, 1.19.4, 23w12a, 23w13a, 23w16a, 23w17a, 23w18a, 1.20 Pre-release 2
    • Confirmed
    • Mob behaviour
    • Normal

      The bug

      Horses will not jump higher when given a jump boost effect until unloaded and reloaded (such as by relogging). Levitation and slow falling only apply to unridden horses until relogging.

      How to reproduce

      1. Acquire a horse: 
        /summon horse ~ ~ ~ {Tame:1b,SaddleItem:{id:"saddle",Count:1b}}
      2. Give it jump boost 
        /effect give @e[type=horse] jump_boost 10000 10
      3. Ride on it and attempt to jump. It will jump its usual height.
      4. Exit and re-enter the world
      5. Attempt to jump a second time. It will jump higher, utilizing the jump boost effect.

        1. Minecraft 1.16 Pre-release 2 - Singleplayer 2020-06-05 10-58-42_Trim.mp4
          9.73 MB
          CalXee
        2. Minecraft 1.16 Pre-release 2 - Singleplayer 2020-06-05 10-58-42_Trim (2).mp4
          7.17 MB
          CalXee

            timurn [Mojang] Timur Nazarov
            tryashtar [Mod] tryashtar
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            17 Start watching this issue

              Created:
              Updated:
              Resolved:
              CHK: