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  1. Minecraft: Java Edition
  2. MC-158677

Ender dragon freezes the server if there's no end stone in the end

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Details

    • Bug
    • Status: Resolved
    • Resolution: Fixed
    • 1.14.4
    • 19w36a
    • None
    • Confirmed
    • Crash
    • Important

    Description

      The bug

      If there's no end stone in the end, and the ender dragon is summoned, the server will freeze as soon as the ender dragon lands on top of the end fountain / exit portal.

      When this issue occurs, the server will not crash. It will just freeze, and then will eventually be shut down by the watchdog noticing that the server is overworked.

      To reproduce

      1. Clear the entire end (central island) of end stone (or use the attached world file where that's already done)
      2. Summon the ender dragon
      3. Remove all end stone that is generated below the portal
      4. Build a small platform for you to stand on
      5. Switch into survival mode
      6. Run /kill @e[type=end_crystal]
      7. Press Alt + F3
      8. Wait for the dragon to sit on the fountain
        The server will freeze (you will notice this by the bottom right graph no longer moving)

      Video

      https://youtu.be/Y41Sbq0OJaY

      Original description

      We blown up the whole end island with tnt for farms, and when we fight the dragon again, each time the dragon lands above the portal, server infinite loops and stops responsing

      the only way to stop is wait for the watchdog to kill the server or manually kills the server.

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          People

            boq [Mojang] Bartosz Bok
            chino_desu chino_desu
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            Dates

              Created:
              Updated:
              Resolved:
              CHK: