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  1. Minecraft: Java Edition
  2. MC-272316

Trying to spawn zombies and their variants sometimes fails and throw unexpected error

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    • Icon: Bug Bug
    • Resolution: Duplicate
    • None
    • 24w21a
    • None
    • Unconfirmed
    • (Unassigned)

      The Bug

      When trying to spawning zombies (and their variants) sometimes failed to spawning and throw unexpected error.

      [23:56:39] [Server thread/ERROR]: Failed to handle packet aid@b592589, suppressing error
      java.lang.IllegalArgumentException: Modifier is already applied on this attribute!
          at buq.e(SourceFile:77) ~[24w21a.jar:?]
          at buq.c(SourceFile:97) ~[24w21a.jar:?]
          at cku.H(SourceFile:555) ~[24w21a.jar:?]
          at cku.a(SourceFile:541) ~[24w21a.jar:?]
          at bsw.b(SourceFile:447) ~[24w21a.jar:?]
          at bsw.a(SourceFile:413) ~[24w21a.jar:?]
          at bsw.a(SourceFile:376) ~[24w21a.jar:?]
          at cvy.a(SourceFile:86) ~[24w21a.jar:?]
          at cuo.a(SourceFile:373) ~[24w21a.jar:?]
          at aqv.a(SourceFile:372) ~[24w21a.jar:?]
          at art.a(SourceFile:1147) ~[24w21a.jar:?]
          at aid.a(SourceFile:42) ~[24w21a.jar:?]
          at aid.a(SourceFile:10) ~[24w21a.jar:?]
          at zi.a(SourceFile:27) ~[24w21a.jar:?]
          at alm.run(SourceFile:18) ~[24w21a.jar:?]
          at bpg.d(SourceFile:162) ~[24w21a.jar:?]
          at bpk.d(SourceFile:23) ~[24w21a.jar:?]
          at net.minecraft.server.MinecraftServer.b(SourceFile:859) ~[24w21a.jar:?]
          at net.minecraft.server.MinecraftServer.d(SourceFile:168) ~[24w21a.jar:?]
          at bpg.B(SourceFile:136) ~[24w21a.jar:?]
          at net.minecraft.server.MinecraftServer.bv(SourceFile:841) ~[24w21a.jar:?]
          at net.minecraft.server.MinecraftServer.B(SourceFile:835) ~[24w21a.jar:?]
          at bpg.bB(SourceFile:121) ~[24w21a.jar:?]
          at net.minecraft.server.MinecraftServer.v_(SourceFile:809) ~[24w21a.jar:?]
          at net.minecraft.server.MinecraftServer.y(SourceFile:697) ~[24w21a.jar:?]
          at net.minecraft.server.MinecraftServer.a(SourceFile:276) ~[24w21a.jar:?]
          at java.base/java.lang.Thread.run(Thread.java:1583) [?:?]

      To reproduce

      Spawning zombies by any means.

      Expected behavior

      Zombies successfully spawned and no error.

      Observed behavior

      Zombies fail to spawned and throw unexpected error.

            Unassigned Unassigned
            4ebugger 4ebugger
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              Created:
              Updated:
              Resolved: