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  1. Minecraft: Java Edition
  2. MC-22147

Entity duplication bug

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    • Icon: Bug Bug
    • Resolution: Awaiting Response
    • None
    • Minecraft 1.6.1, Minecraft 14w25b, Minecraft 14w32d, Minecraft 1.8.6, Minecraft 15w43b, Minecraft 1.10.2, Minecraft 1.11, Minecraft 1.12.1
    • Confirmed
    • Survival

      The bug

      Definitely the way how entities are being saved is not stable and need to be checked. Yesterday I complained that my horse with armor and saddle disappeared with no reason after I have re-logged my SSP world. Today I enter my brewing room I found my only one librarian villager was duplicated. Both librarians and with the same offerings as of my last trade.

      It's impossible for a villager to have entered that room (underground, by iron door); the closest village is 800 m away. I got my librarian by curing a zombie villager and trapping him in that room.

      Sorry, this bug is irreproducible. It happened randomly.

      Code analysis

      See this comment by TastyHaggis

        1. AnvilChunkLoader.java
          24 kB
        2. AnvilChunkLoader.java
          18 kB
        3. avd$1.class
          1 kB
        4. avd.class
          12 kB
        5. 2013-07-04_16.16.16.png
          2013-07-04_16.16.16.png
          148 kB

            Unassigned Unassigned
            ezerarch Ezer'Arch
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            46 Vote for this issue
            Watchers:
            27 Start watching this issue

              Created:
              Updated:
              Resolved:
              CHK: