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  1. Minecraft: Java Edition
  2. MC-87454

Mobs summoned with ActiveEffects do not get the potion effects unless they are splashed with a thrown potion of that effect

    Details

    • Type: Bug
    • Status: Resolved
    • Resolution: Fixed
    • Affects Version/s: Minecraft 1.8.8, Minecraft 15w35b
    • Fix Version/s: Minecraft 15w44b
    • Labels:
      None
    • Environment:

      Windows 8.1
      Java Version 8 Update 25

    • Confirmation Status:
      Unconfirmed

      Description

      I summoned a zombie and used this tag to give it speed from a command block and I truncated the command (since it is slightly too longt) and used it in chat.

      summon Zombie ~ ~1 ~ {ActiveEffects:[

      {Ambient:0b,ShowParticles:1b,Duration:999999,Id:1b,Amplifier:20b}

      ]}

      The zombie spawned without speed, but had the speed particles. I had the zombie chase me. I then splashed the zombie with a swiftness potion and instead of giving the zombie the speed boost of the potion (level I or II) the zombie got speed 21 from the ActiveEffects. The duration from the mob being spawned was how long it lasts.

      I tested this on a zombie and a sheep with various splash speed potions.
      I had the zombie chase villagers as well as myself. I tested various Durations ranging from 400 - 999999, and Amplifiers from 1b to 20b. I also got similar results when I gave a zombie slowness and weakness ActiveEffects and I tossed the corresponding potion at the mob.

      Did I type the command correctly?
      Does anyone else have this issue?

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            • Assignee:
              Unassigned
              Reporter:
              Fernaduel Jared Barnes
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              Dates

              • Created:
                Updated:
                Resolved: