In a data pack that uses custom noise settings ( namespace:something ) instead of something like minecraft:overworld, any world with that data pack loaded instantly crashes upon opening it.

This only happens if the world uses noise settings in any namespace other than minecraft, even if they are unchanged in every other way.

STEPS TO RECREATE:

1.) Create a data pack in which one or more dimensions uses noise settings from any namespace other than minecraft:<something>. The actual noise settings don't matter - just copy and paste the vanilla ones.

2.) When trying to load that world, that world will instantly crash.

The error message is: 

• The game crashed whilst starting integrated server
  Error: java.lang.UnsupportedOperationException: Trying to add tag of type 10 to list of 8

This is the copied-and-pasted data from the log:

• Reported exception thrown! u: Starting integrated server at don.a(SourceFile:440) at dju.a(SourceFile:92) at dju.c(SourceFile:162) at dju$$Lambda$2992/869896271.run(Unknown Source) at anw.execute(SourceFile:94) at dju.b(SourceFile:162) at dju$$Lambda$2339/988289875.invoke(Unknown Source) at org.lwjgl.glfw.GLFWMouseButtonCallbackI.callback(GLFWMouseButtonCallbackI.java:36) at org.lwjgl.system.JNI.invokeV(Native Method) at org.lwjgl.glfw.GLFW.glfwPollEvents(GLFW.java:3101) at com.mojang.blaze3d.systems.RenderSystem.flipFrame(SourceFile:109) at det.e(SourceFile:308) at djt.e(SourceFile:1040) at djt.e(SourceFile:653) at net.minecraft.client.main.Main.main(SourceFile:215) Caused by: java.lang.UnsupportedOperationException: Trying to add tag of type 10 to list of 8 at mi.c(SourceFile:254) at mi.add(SourceFile:19) at java.util.AbstractList.add(AbstractList.java:108) at mn.a(SourceFile:169) at mn$$Lambda$4027/160933279.accept(Unknown Source) at com.google.common.collect.ImmutableList.forEach(ImmutableList.java:408) at mn.a(SourceFile:169) at mn.a(SourceFile:196) at mn.mergeToList(SourceFile:26) at com.mojang.serialization.ListBuilder$Builder.lambda$build$3(ListBuilder.java:74) at com.mojang.serialization.ListBuilder$Builder$$Lambda$4025/1409732255.apply(Unknown Source) at com.mojang.serialization.DataResult.lambda$flatMap$10(DataResult.java:138) at com.mojang.serialization.DataResult$$Lambda$648/1956642247.apply(Unknown Source) at com.mojang.datafixers.util.Either$Left.map(Either.java:38) at com.mojang.serialization.DataResult.flatMap(DataResult.java:136) at com.mojang.serialization.ListBuilder$Builder.build(ListBuilder.java:74) at com.mojang.serialization.codecs.ListCodec.encode(ListCodec.java:34) at com.mojang.serialization.codecs.ListCodec.encode(ListCodec.java:19) at com.mojang.serialization.Codec$2.encode(Codec.java:76) at com.mojang.serialization.Encoder.encodeStart(Encoder.java:14) at com.mojang.serialization.codecs.ListCodec.encode(ListCodec.java:31) at com.mojang.serialization.codecs.ListCodec.encode(ListCodec.java:19) at com.mojang.serialization.Encoder.encodeStart(Encoder.java:14) at com.mojang.serialization.codecs.FieldEncoder.encode(FieldEncoder.java:24) at com.mojang.serialization.MapCodec$1.encode(MapCodec.java:39) at com.mojang.serialization.codecs.RecordCodecBuilder$Instance$8.encode(RecordCodecBuilder.java:378) at com.mojang.serialization.codecs.RecordCodecBuilder$2.encode(RecordCodecBuilder.java:112) at com.mojang.serialization.codecs.RecordCodecBuilder$Instance$8.encode(RecordCodecBuilder.java:377) at com.mojang.serialization.codecs.RecordCodecBuilder$2.encode(RecordCodecBuilder.java:112) at com.mojang.serialization.MapCodec$MapCodecCodec.encode(MapCodec.java:96) at vg.a(SourceFile:35) at ve.a(SourceFile:27) at ve.encode(SourceFile:11) at com.mojang.serialization.Encoder.encodeStart(Encoder.java:14) at com.mojang.serialization.codecs.FieldEncoder.encode(FieldEncoder.java:24) at com.mojang.serialization.MapCodec$1.encode(MapCodec.java:39) at com.mojang.serialization.codecs.RecordCodecBuilder$Instance$4.encode(RecordCodecBuilder.java:223) at com.mojang.serialization.codecs.RecordCodecBuilder$2.encode(RecordCodecBuilder.java:112) at com.mojang.serialization.MapCodec$MapCodecCodec.encode(MapCodec.java:96) at com.mojang.serialization.Encoder.encodeStart(Encoder.java:14) at com.mojang.serialization.codecs.ListCodec.encode(ListCodec.java:31) at com.mojang.serialization.codecs.ListCodec.encode(ListCodec.java:19) at com.mojang.serialization.Encoder.encodeStart(Encoder.java:14) at com.mojang.serialization.codecs.FieldEncoder.encode(FieldEncoder.java:24) at com.mojang.serialization.MapCodec$1.encode(MapCodec.java:39) at com.mojang.serialization.codecs.RecordCodecBuilder$Instance$6.encode(RecordCodecBuilder.java:296) at com.mojang.serialization.codecs.RecordCodecBuilder$Instance$6.encode(RecordCodecBuilder.java:298) at com.mojang.serialization.codecs.RecordCodecBuilder$2.encode(RecordCodecBuilder.java:112) at com.mojang.serialization.codecs.EitherMapCodec.lambda$encode$1(EitherMapCodec.java:37) at com.mojang.serialization.codecs.EitherMapCodec$$Lambda$4022/2063267330.apply(Unknown Source) at com.mojang.datafixers.util.Either$Right.map(Either.java:99) at com.mojang.serialization.codecs.EitherMapCodec.encode(EitherMapCodec.java:35) at com.mojang.serialization.codecs.EitherMapCodec.encode(EitherMapCodec.java:15) at com.mojang.serialization.MapEncoder$1.encode(MapEncoder.java:26) at com.mojang.serialization.MapCodec$1.encode(MapCodec.java:39) at com.mojang.serialization.codecs.KeyDispatchCodec.encode(KeyDispatchCodec.java:92) at com.mojang.serialization.MapCodec$MapCodecCodec.encode(MapCodec.java:96) at com.mojang.serialization.Encoder.encodeStart(Encoder.java:14) at com.mojang.serialization.codecs.FieldEncoder.encode(FieldEncoder.java:24) at com.mojang.serialization.MapCodec$1.encode(MapCodec.java:39) at com.mojang.serialization.codecs.RecordCodecBuilder$Instance$6.encode(RecordCodecBuilder.java:295) at com.mojang.serialization.codecs.RecordCodecBuilder$2.encode(RecordCodecBuilder.java:112) at com.mojang.serialization.codecs.KeyDispatchCodec.encode(KeyDispatchCodec.java:92) at com.mojang.serialization.MapCodec$MapCodecCodec.encode(MapCodec.java:96) at com.mojang.serialization.Encoder.encodeStart(Encoder.java:14) at com.mojang.serialization.codecs.FieldEncoder.encode(FieldEncoder.java:24) at com.mojang.serialization.MapCodec$1.encode(MapCodec.java:39) at com.mojang.serialization.codecs.RecordCodecBuilder$Instance$4.encode(RecordCodecBuilder.java:223) at com.mojang.serialization.codecs.RecordCodecBuilder$2.encode(RecordCodecBuilder.java:112) at com.mojang.serialization.MapCodec$MapCodecCodec.encode(MapCodec.java:96) at com.mojang.serialization.Encoder.encodeStart(Encoder.java:14) at com.mojang.serialization.codecs.BaseMapCodec.encode(BaseMapCodec.java:52) at com.mojang.serialization.codecs.UnboundedMapCodec.encode(UnboundedMapCodec.java:43) at com.mojang.serialization.codecs.UnboundedMapCodec.encode(UnboundedMapCodec.java:17) at com.mojang.serialization.Encoder$1.encode(Encoder.java:25) at com.mojang.serialization.Codec$2.encode(Codec.java:76) at vd.a(SourceFile:28) at vd.encode(SourceFile:11) at com.mojang.serialization.Encoder$1.encode(Encoder.java:25) at com.mojang.serialization.Codec$2.encode(Codec.java:76) at com.mojang.serialization.Encoder.encodeStart(Encoder.java:14) at com.mojang.serialization.codecs.FieldEncoder.encode(FieldEncoder.java:24) at com.mojang.serialization.MapCodec$1.encode(MapCodec.java:39) at com.mojang.serialization.codecs.RecordCodecBuilder$Instance$6.encode(RecordCodecBuilder.java:296) at com.mojang.serialization.codecs.RecordCodecBuilder$2.encode(RecordCodecBuilder.java:112) at com.mojang.serialization.MapCodec$MapCodecCodec.encode(MapCodec.java:96) at com.mojang.serialization.Encoder$1.encode(Encoder.java:25) at com.mojang.serialization.Codec$2.encode(Codec.java:76) at com.mojang.serialization.Encoder.encodeStart(Encoder.java:14) at cyf.a(SourceFile:250) at cyf.a(SourceFile:231) at cya$a.a(SourceFile:339) at cya$a.a(SourceFile:333) at djt.a(SourceFile:1782) at djt.a(SourceFile:1767) at djt$$Lambda$3984/1785414966.run(Unknown Source) at djt.a(SourceFile:1858) at djt$$Lambda$3985/773076906.proceed(Unknown Source) at dni.b(SourceFile:40) at dni$$Lambda$3993/181046446.onPress(Unknown Source) at dld.b(SourceFile:33) at dkx.a(SourceFile:16) at dlb.a(SourceFile:149) at dmb.a(SourceFile:27) at dju.b(SourceFile:92) at dju$$Lambda$2993/749676590.run(Unknown Source) at don.a(SourceFile:435) ... 14 more
• 15:39:44.313
• Process crashed with exit code -1