--- a/net/minecraft/util/datafix/DataConverterRegistry.java
+++ b/net/minecraft/util/datafix/DataConverterRegistry.java
@@ -395,6 +395,18 @@
         datafixerbuilder.addFixer(new DataConverterItemFrame(schema46, false));
         Schema schema47 = datafixerbuilder.addSchema(1458, DataConverterRegistry.SAME_NAMESPACED);
 
+        // CraftBukkit start
+        datafixerbuilder.addFixer(new com.mojang.datafixers.DataFix(schema47, false) {
+            @Override
+            protected com.mojang.datafixers.TypeRewriteRule makeRule() {
+                return this.fixTypeEverywhereTyped("Player CustomName", this.getInputSchema().getType(DataConverterTypes.PLAYER), (typed) -> {
+                    return typed.update(DSL.remainderFinder(), (dynamic) -> {
+                        return DataConverterCustomNameEntity.fixTagCustomName(dynamic);
+                    });
+                });
+            }
+        });
+        // CraftBukkit end
         datafixerbuilder.addFixer(new DataConverterCustomNameEntity(schema47, false));
         datafixerbuilder.addFixer(new DataConverterCustomNameItem(schema47, false));
         datafixerbuilder.addFixer(new DataConverterCustomNameTile(schema47, false));
@@ -711,12 +723,14 @@
         datafixerbuilder.addFixer(new DataConverterAddChoices(schema131, "Added Glow Squid", DataConverterTypes.ENTITY));
         datafixerbuilder.addFixer(new DataConverterAddChoices(schema131, "Added Glow Item Frame", DataConverterTypes.ENTITY));
         Schema schema132 = datafixerbuilder.addSchema(2690, DataConverterRegistry.SAME_NAMESPACED);
-        ImmutableMap<String, String> immutablemap = ImmutableMap.builder().put("minecraft:weathered_copper_block", "minecraft:oxidized_copper_block").put("minecraft:semi_weathered_copper_block", "minecraft:weathered_copper_block").put("minecraft:lightly_weathered_copper_block", "minecraft:exposed_copper_block").put("minecraft:weathered_cut_copper", "minecraft:oxidized_cut_copper").put("minecraft:semi_weathered_cut_copper", "minecraft:weathered_cut_copper").put("minecraft:lightly_weathered_cut_copper", "minecraft:exposed_cut_copper").put("minecraft:weathered_cut_copper_stairs", "minecraft:oxidized_cut_copper_stairs").put("minecraft:semi_weathered_cut_copper_stairs", "minecraft:weathered_cut_copper_stairs").put("minecraft:lightly_weathered_cut_copper_stairs", "minecraft:exposed_cut_copper_stairs").put("minecraft:weathered_cut_copper_slab", "minecraft:oxidized_cut_copper_slab").put("minecraft:semi_weathered_cut_copper_slab", "minecraft:weathered_cut_copper_slab").put("minecraft:lightly_weathered_cut_copper_slab", "minecraft:exposed_cut_copper_slab").put("minecraft:waxed_semi_weathered_copper", "minecraft:waxed_weathered_copper").put("minecraft:waxed_lightly_weathered_copper", "minecraft:waxed_exposed_copper").put("minecraft:waxed_semi_weathered_cut_copper", "minecraft:waxed_weathered_cut_copper").put("minecraft:waxed_lightly_weathered_cut_copper", "minecraft:waxed_exposed_cut_copper").put("minecraft:waxed_semi_weathered_cut_copper_stairs", "minecraft:waxed_weathered_cut_copper_stairs").put("minecraft:waxed_lightly_weathered_cut_copper_stairs", "minecraft:waxed_exposed_cut_copper_stairs").put("minecraft:waxed_semi_weathered_cut_copper_slab", "minecraft:waxed_weathered_cut_copper_slab").put("minecraft:waxed_lightly_weathered_cut_copper_slab", "minecraft:waxed_exposed_cut_copper_slab").build();
+        // CraftBukkit - decompile error
+        ImmutableMap<String, String> immutablemap = ImmutableMap.<String, String>builder().put("minecraft:weathered_copper_block", "minecraft:oxidized_copper_block").put("minecraft:semi_weathered_copper_block", "minecraft:weathered_copper_block").put("minecraft:lightly_weathered_copper_block", "minecraft:exposed_copper_block").put("minecraft:weathered_cut_copper", "minecraft:oxidized_cut_copper").put("minecraft:semi_weathered_cut_copper", "minecraft:weathered_cut_copper").put("minecraft:lightly_weathered_cut_copper", "minecraft:exposed_cut_copper").put("minecraft:weathered_cut_copper_stairs", "minecraft:oxidized_cut_copper_stairs").put("minecraft:semi_weathered_cut_copper_stairs", "minecraft:weathered_cut_copper_stairs").put("minecraft:lightly_weathered_cut_copper_stairs", "minecraft:exposed_cut_copper_stairs").put("minecraft:weathered_cut_copper_slab", "minecraft:oxidized_cut_copper_slab").put("minecraft:semi_weathered_cut_copper_slab", "minecraft:weathered_cut_copper_slab").put("minecraft:lightly_weathered_cut_copper_slab", "minecraft:exposed_cut_copper_slab").put("minecraft:waxed_semi_weathered_copper", "minecraft:waxed_weathered_copper").put("minecraft:waxed_lightly_weathered_copper", "minecraft:waxed_exposed_copper").put("minecraft:waxed_semi_weathered_cut_copper", "minecraft:waxed_weathered_cut_copper").put("minecraft:waxed_lightly_weathered_cut_copper", "minecraft:waxed_exposed_cut_copper").put("minecraft:waxed_semi_weathered_cut_copper_stairs", "minecraft:waxed_weathered_cut_copper_stairs").put("minecraft:waxed_lightly_weathered_cut_copper_stairs", "minecraft:waxed_exposed_cut_copper_stairs").put("minecraft:waxed_semi_weathered_cut_copper_slab", "minecraft:waxed_weathered_cut_copper_slab").put("minecraft:waxed_lightly_weathered_cut_copper_slab", "minecraft:waxed_exposed_cut_copper_slab").build();
 
         datafixerbuilder.addFixer(DataConverterItemName.create(schema132, "Renamed copper block items to new oxidized terms", createRenamer(immutablemap)));
         datafixerbuilder.addFixer(BlockRenameFixWithJigsaw.create(schema132, "Renamed copper blocks to new oxidized terms", createRenamer(immutablemap)));
         Schema schema133 = datafixerbuilder.addSchema(2691, DataConverterRegistry.SAME_NAMESPACED);
-        ImmutableMap<String, String> immutablemap1 = ImmutableMap.builder().put("minecraft:waxed_copper", "minecraft:waxed_copper_block").put("minecraft:oxidized_copper_block", "minecraft:oxidized_copper").put("minecraft:weathered_copper_block", "minecraft:weathered_copper").put("minecraft:exposed_copper_block", "minecraft:exposed_copper").build();
+        // CraftBukkit - decompile error
+        ImmutableMap<String, String> immutablemap1 = ImmutableMap.<String, String>builder().put("minecraft:waxed_copper", "minecraft:waxed_copper_block").put("minecraft:oxidized_copper_block", "minecraft:oxidized_copper").put("minecraft:weathered_copper_block", "minecraft:weathered_copper").put("minecraft:exposed_copper_block", "minecraft:exposed_copper").build();
 
         datafixerbuilder.addFixer(DataConverterItemName.create(schema133, "Rename copper item suffixes", createRenamer(immutablemap1)));
         datafixerbuilder.addFixer(BlockRenameFixWithJigsaw.create(schema133, "Rename copper blocks suffixes", createRenamer(immutablemap1)));
@@ -724,7 +738,8 @@
 
         datafixerbuilder.addFixer(new AddFlagIfNotPresentFix(schema134, DataConverterTypes.WORLD_GEN_SETTINGS, "has_increased_height_already", false));
         Schema schema135 = datafixerbuilder.addSchema(2696, DataConverterRegistry.SAME_NAMESPACED);
-        ImmutableMap<String, String> immutablemap2 = ImmutableMap.builder().put("minecraft:grimstone", "minecraft:deepslate").put("minecraft:grimstone_slab", "minecraft:cobbled_deepslate_slab").put("minecraft:grimstone_stairs", "minecraft:cobbled_deepslate_stairs").put("minecraft:grimstone_wall", "minecraft:cobbled_deepslate_wall").put("minecraft:polished_grimstone", "minecraft:polished_deepslate").put("minecraft:polished_grimstone_slab", "minecraft:polished_deepslate_slab").put("minecraft:polished_grimstone_stairs", "minecraft:polished_deepslate_stairs").put("minecraft:polished_grimstone_wall", "minecraft:polished_deepslate_wall").put("minecraft:grimstone_tiles", "minecraft:deepslate_tiles").put("minecraft:grimstone_tile_slab", "minecraft:deepslate_tile_slab").put("minecraft:grimstone_tile_stairs", "minecraft:deepslate_tile_stairs").put("minecraft:grimstone_tile_wall", "minecraft:deepslate_tile_wall").put("minecraft:grimstone_bricks", "minecraft:deepslate_bricks").put("minecraft:grimstone_brick_slab", "minecraft:deepslate_brick_slab").put("minecraft:grimstone_brick_stairs", "minecraft:deepslate_brick_stairs").put("minecraft:grimstone_brick_wall", "minecraft:deepslate_brick_wall").put("minecraft:chiseled_grimstone", "minecraft:chiseled_deepslate").build();
+        // CraftBukkit - decompile error
+        ImmutableMap<String, String> immutablemap2 = ImmutableMap.<String, String>builder().put("minecraft:grimstone", "minecraft:deepslate").put("minecraft:grimstone_slab", "minecraft:cobbled_deepslate_slab").put("minecraft:grimstone_stairs", "minecraft:cobbled_deepslate_stairs").put("minecraft:grimstone_wall", "minecraft:cobbled_deepslate_wall").put("minecraft:polished_grimstone", "minecraft:polished_deepslate").put("minecraft:polished_grimstone_slab", "minecraft:polished_deepslate_slab").put("minecraft:polished_grimstone_stairs", "minecraft:polished_deepslate_stairs").put("minecraft:polished_grimstone_wall", "minecraft:polished_deepslate_wall").put("minecraft:grimstone_tiles", "minecraft:deepslate_tiles").put("minecraft:grimstone_tile_slab", "minecraft:deepslate_tile_slab").put("minecraft:grimstone_tile_stairs", "minecraft:deepslate_tile_stairs").put("minecraft:grimstone_tile_wall", "minecraft:deepslate_tile_wall").put("minecraft:grimstone_bricks", "minecraft:deepslate_bricks").put("minecraft:grimstone_brick_slab", "minecraft:deepslate_brick_slab").put("minecraft:grimstone_brick_stairs", "minecraft:deepslate_brick_stairs").put("minecraft:grimstone_brick_wall", "minecraft:deepslate_brick_wall").put("minecraft:chiseled_grimstone", "minecraft:chiseled_deepslate").build();
 
         datafixerbuilder.addFixer(DataConverterItemName.create(schema135, "Renamed grimstone block items to deepslate", createRenamer(immutablemap2)));
         datafixerbuilder.addFixer(BlockRenameFixWithJigsaw.create(schema135, "Renamed grimstone blocks to deepslate", createRenamer(immutablemap2)));