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  1. Minecraft: Java Edition
  2. MC-116087

Game crashes when joining a server with custom advancements.

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    Details

    • Type: Bug
    • Status: Resolved
    • Resolution: Duplicate
    • Affects Version/s: Minecraft 17w15a
    • Fix Version/s: None
    • Labels:
      None
    • Environment:
      Windows 10
      Java 8
      Minecraft 17w15a
    • Confirmation Status:
      Unconfirmed

      Description

      Each time I try joining my server that has custom advancement it crashes. The crash happens when the custom advancement is unlocked and then it continues to crash each time you join after that. Here is the crash: Internal Exception: io.netty.handler.codec.DecoderException: java.lang.NullPointerException.
      Please help! I wanna show my friends the new advancement system!

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              • Assignee:
                Unassigned
                Reporter:
                Jacksoncreeper Jackson
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                • Created:
                  Updated:
                  Resolved: