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  1. Minecraft: Java Edition
  2. MC-249444

Severe chunk save problems

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    • Icon: Bug Bug
    • Resolution: Duplicate
    • None
    • 22w12a
    • None
    • Unconfirmed
    • (Unassigned)

      The bug
      I get these chunk save errors while exploring my world and some of them got reset completely, losing a chunk of my builds

      [21:40:17] [Server thread/ERROR]: Failed to save chunk 1381,-318
      java.lang.NullPointerException: Cannot invoke "java.util.UUID.getMostSignificantBits()" because "$$0" is null
      	at hi.a(SourceFile:27) ~[22w12a.jar:?]
      	at hi.b(SourceFile:13) ~[22w12a.jar:?]
      	at com.mojang.serialization.Encoder$1.encode(Encoder.java:25) ~[datafixerupper-4.1.27.jar:?]
      	at com.mojang.serialization.Codec$2.encode(Codec.java:76) ~[datafixerupper-4.1.27.jar:?]
      	at com.mojang.serialization.Encoder.encodeStart(Encoder.java:14) ~[datafixerupper-4.1.27.jar:?]
      	at com.mojang.serialization.codecs.FieldEncoder.encode(FieldEncoder.java:24) ~[datafixerupper-4.1.27.jar:?]
      	at com.mojang.serialization.MapCodec$1.encode(MapCodec.java:39) ~[datafixerupper-4.1.27.jar:?]
      	at com.mojang.serialization.MapCodec$3.encode(MapCodec.java:181) ~[datafixerupper-4.1.27.jar:?]
      	at com.mojang.serialization.codecs.RecordCodecBuilder$Instance$8.encode(RecordCodecBuilder.java:379) ~[datafixerupper-4.1.27.jar:?]
      	at com.mojang.serialization.codecs.RecordCodecBuilder$2.encode(RecordCodecBuilder.java:112) ~[datafixerupper-4.1.27.jar:?]
      	at com.mojang.serialization.MapCodec$MapCodecCodec.encode(MapCodec.java:96) ~[datafixerupper-4.1.27.jar:?]
      	at com.mojang.serialization.Encoder.encodeStart(Encoder.java:14) ~[datafixerupper-4.1.27.jar:?]
      	at com.mojang.serialization.codecs.OptionalFieldCodec.encode(OptionalFieldCodec.java:42) ~[datafixerupper-4.1.27.jar:?]
      	at com.mojang.serialization.codecs.OptionalFieldCodec.encode(OptionalFieldCodec.java:17) ~[datafixerupper-4.1.27.jar:?]
      	at com.mojang.serialization.codecs.RecordCodecBuilder$Instance$6.encode(RecordCodecBuilder.java:295) ~[datafixerupper-4.1.27.jar:?]
      	at com.mojang.serialization.codecs.RecordCodecBuilder$2.encode(RecordCodecBuilder.java:112) ~[datafixerupper-4.1.27.jar:?]
      	at com.mojang.serialization.MapCodec$MapCodecCodec.encode(MapCodec.java:96) ~[datafixerupper-4.1.27.jar:?]
      	at com.mojang.serialization.Encoder.encodeStart(Encoder.java:14) ~[datafixerupper-4.1.27.jar:?]
      	at cqe.b(SourceFile:51) ~[22w12a.jar:?]
      	at cpf.o(SourceFile:84) ~[22w12a.jar:?]
      	at cpf.m(SourceFile:64) ~[22w12a.jar:?]
      	at cto.g(SourceFile:380) ~[22w12a.jar:?]
      	at cuc.a(SourceFile:345) ~[22w12a.jar:?]
      	at ads.a(SourceFile:828) ~[22w12a.jar:?]
      	at ads.d(SourceFile:792) ~[22w12a.jar:?]
      	at ads.b(SourceFile:531) ~[22w12a.jar:?]
      	at ads.a(SourceFile:486) ~[22w12a.jar:?]
      	at aed.a(SourceFile:326) ~[22w12a.jar:?]
      	at aef.a(SourceFile:314) ~[22w12a.jar:?]
      	at net.minecraft.server.MinecraftServer.b(SourceFile:903) ~[22w12a.jar:?]
      	at net.minecraft.server.MinecraftServer.a(SourceFile:847) ~[22w12a.jar:?]
      	at fhk.a(SourceFile:97) ~[22w12a.jar:?]
      	at net.minecraft.server.MinecraftServer.w(SourceFile:693) ~[22w12a.jar:?]
      	at net.minecraft.server.MinecraftServer.a(SourceFile:271) ~[22w12a.jar:?]
      	at java.lang.Thread.run(Thread.java:833) [?:?]
      

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              Created:
              Updated:
              Resolved: