RegistrySync-related crash, how to find the culprit?

[ViciousBadger]

Minecraft Logs

---- Minecraft Crash Report ----
// Daisy, daisy...

Time: 2024-09-30 21:21:57
Description: mouseClicked event handler

java.lang.NullPointerException
	at com.google.common.collect.Iterators$6.transform(Iterators.java:829)
	at com.google.common.collect.TransformedIterator.next(TransformedIterator.java:52)
	at MC//net.minecraft.registry.SimpleRegistry.remap(SimpleRegistry.java:1247)
	at MC//net.minecraft.registry.SimpleRegistry.unmap(SimpleRegistry.java:1378)
	at net.fabricmc.fabric.impl.registry.sync.RegistrySyncManager.unmap(RegistrySyncManager.java:367)
	at MC//net.minecraft.client.MinecraftClient.handler$dcc000$fabric-registry-sync-v0$disconnectAfter(MinecraftClient.java:17691)
	at MC//net.minecraft.client.MinecraftClient.disconnect(MinecraftClient.java:2269)
	at MC//net.minecraft.client.MinecraftClient.disconnect(MinecraftClient.java:2215)
	at MC//net.minecraft.client.gui.screen.GameMenuScreen.disconnect(GameMenuScreen.java:136)
	at MC//net.minecraft.client.session.report.AbuseReportContext.tryShowDraftScreen(AbuseReportContext.java:52)
	at MC//net.minecraft.client.gui.screen.GameMenuScreen.method_19836(GameMenuScreen.java:112)
	at MC//net.minecraft.client.gui.widget.ButtonWidget.onPress(ButtonWidget.java:96)
	at MC//net.minecraft.client.gui.widget.PressableWidget.onClick(PressableWidget.java:48)
	at MC//net.minecraft.client.gui.widget.ClickableWidget.mouseClicked(ClickableWidget.java:141)
	at MC//net.minecraft.client.gui.ParentElement.mouseClicked(ParentElement.java:38)
	at MC//net.minecraft.client.Mouse.method_1611(Mouse.java:107)
	at MC//net.minecraft.client.gui.screen.Screen.wrapScreenError(Screen.java:431)
	at MC//net.minecraft.client.Mouse.onMouseButton(Mouse.java:107)
	at MC//net.minecraft.client.Mouse.method_22686(Mouse.java:196)
	at MC//net.minecraft.util.thread.ThreadExecutor.execute(ThreadExecutor.java:108)
	at MC//net.minecraft.client.Mouse.method_22684(Mouse.java:196)
	at org.lwjgl.glfw.GLFWMouseButtonCallbackI.callback(GLFWMouseButtonCallbackI.java:43)
	at org.lwjgl.system.JNI.invokeV(Native Method)
	at org.lwjgl.glfw.GLFW.glfwPollEvents(GLFW.java:3438)
	at com.mojang.blaze3d.systems.RenderSystem.pollEvents(RenderSystem.java:150)
	at com.mojang.blaze3d.systems.RenderSystem.flipFrame(RenderSystem.java:168)
	at MC//net.minecraft.client.util.Window.swapBuffers(Window.java:303)
	at MC//net.minecraft.client.MinecraftClient.render(MinecraftClient.java:1307)
	at MC//net.minecraft.client.MinecraftClient.run(MinecraftClient.java:882)
	at net.minecraft.client.main.Main.main(Main.java:256)
	at app//net.fabricmc.loader.impl.game.minecraft.MinecraftGameProvider.launch(MinecraftGameProvider.java:480)
	at app//net.fabricmc.loader.impl.launch.knot.Knot.launch(Knot.java:74)
	at app//net.fabricmc.loader.impl.launch.knot.KnotClient.main(KnotClient.java:23)
	at app//org.prismlauncher.launcher.impl.StandardLauncher.launch(StandardLauncher.java:100)
	at app//org.prismlauncher.EntryPoint.listen(EntryPoint.java:129)
	at app//org.prismlauncher.EntryPoint.main(EntryPoint.java:70)


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Thread: Render thread
Stacktrace:
	at com.google.common.collect.Iterators$6.transform(Iterators.java:829)
	at com.google.common.collect.TransformedIterator.next(TransformedIterator.java:52)
	at MC//net.minecraft.registry.SimpleRegistry.remap(SimpleRegistry.java:1247)
	at MC//net.minecraft.registry.SimpleRegistry.unmap(SimpleRegistry.java:1378)
	at net.fabricmc.fabric.impl.registry.sync.RegistrySyncManager.unmap(RegistrySyncManager.java:367)
	at MC//net.minecraft.client.MinecraftClient.handler$dcc000$fabric-registry-sync-v0$disconnectAfter(MinecraftClient.java:17691)
	at MC//net.minecraft.client.MinecraftClient.disconnect(MinecraftClient.java:2269)
	at MC//net.minecraft.client.MinecraftClient.disconnect(MinecraftClient.java:2215)
	at MC//net.minecraft.client.gui.screen.GameMenuScreen.disconnect(GameMenuScreen.java:136)
	at MC//net.minecraft.client.session.report.AbuseReportContext.tryShowDraftScreen(AbuseReportContext.java:52)
	at MC//net.minecraft.client.gui.screen.GameMenuScreen.method_19836(GameMenuScreen.java:112)
	at MC//net.minecraft.client.gui.widget.ButtonWidget.onPress(ButtonWidget.java:96)
	at MC//net.minecraft.client.gui.widget.PressableWidget.onClick(PressableWidget.java:48)
	at MC//net.minecraft.client.gui.widget.ClickableWidget.mouseClicked(ClickableWidget.java:141)
	at MC//net.minecraft.client.gui.ParentElement.mouseClicked(ParentElement.java:38)
	at MC//net.minecraft.client.Mouse.method_1611(Mouse.java:107)

-- Affected screen --
Details:
	Screen name: net.minecraft.class_433
Stacktrace:
	at MC//net.minecraft.client.gui.screen.Screen.wrapScreenError(Screen.java:431)
	at MC//net.minecraft.client.Mouse.onMouseButton(Mouse.java:107)
	at MC//net.minecraft.client.Mouse.method_22686(Mouse.java:196)
	at MC//net.minecraft.util.thread.ThreadExecutor.execute(ThreadExecutor.java:108)
	at MC//net.minecraft.client.Mouse.method_22684(Mouse.java:196)
	at org.lwjgl.glfw.GLFWMouseButtonCallbackI.callback(GLFWMouseButtonCallbackI.java:43)
	at org.lwjgl.system.JNI.invokeV(Native Method)
	at org.lwjgl.glfw.GLFW.glfwPollEvents(GLFW.java:3438)
	at com.mojang.blaze3d.systems.RenderSystem.pollEvents(RenderSystem.java:150)
	at com.mojang.blaze3d.systems.RenderSystem.flipFrame(RenderSystem.java:168)
	at MC//net.minecraft.client.util.Window.swapBuffers(Window.java:303)
	at MC//net.minecraft.client.MinecraftClient.render(MinecraftClient.java:1307)
	at MC//net.minecraft.client.MinecraftClient.run(MinecraftClient.java:882)
	at net.minecraft.client.main.Main.main(Main.java:256)
	at app//net.fabricmc.loader.impl.game.minecraft.MinecraftGameProvider.launch(MinecraftGameProvider.java:480)
	at app//net.fabricmc.loader.impl.launch.knot.Knot.launch(Knot.java:74)
	at app//net.fabricmc.loader.impl.launch.knot.KnotClient.main(KnotClient.java:23)
	at app//org.prismlauncher.launcher.impl.StandardLauncher.launch(StandardLauncher.java:100)
	at app//org.prismlauncher.EntryPoint.listen(EntryPoint.java:129)
	at app//org.prismlauncher.EntryPoint.main(EntryPoint.java:70)

-- System Details --
Details:
	Minecraft Version: 1.21.1
	Minecraft Version ID: 1.21.1
	Operating System: Linux (amd64) version 6.6.51
	Java Version: 21.0.3, N/A
	Java VM Version: OpenJDK 64-Bit Server VM (mixed mode, sharing), Oracle Corporation
	Memory: 12619013704 bytes (12034 MiB) / 14680064000 bytes (14000 MiB) up to 14680064000 bytes (14000 MiB)
	CPUs: 24
	Processor Vendor: AuthenticAMD
	Processor Name: AMD Ryzen 9 7900X 12-Core Processor
	Identifier: AuthenticAMD Family 25 Model 97 Stepping 2
	Microarchitecture: Zen 3
	Frequency (GHz): -0.00
	Number of physical packages: 1
	Number of physical CPUs: 12
	Number of logical CPUs: 24
	Graphics card #0 name: Navi 21 [Radeon RX 6800/6800 XT / 6900 XT]
	Graphics card #0 vendor: Advanced Micro Devices, Inc. [AMD/ATI] (0x1002)
	Graphics card #0 VRAM (MiB): 16640.00
	Graphics card #0 deviceId: 0x73bf
	Graphics card #0 versionInfo: unknown
	Graphics card #1 name: Raphael
	Graphics card #1 vendor: Advanced Micro Devices, Inc. [AMD/ATI] (0x1002)
	Graphics card #1 VRAM (MiB): 258.00
	Graphics card #1 deviceId: 0x164e
	Graphics card #1 versionInfo: unknown
	Virtual memory max (MiB): 31979.83
	Virtual memory used (MiB): 23928.88
	Swap memory total (MiB): 16384.00
	Swap memory used (MiB): 285.25
	Space in storage for jna.tmpdir (MiB): <path not set>
	Space in storage for org.lwjgl.system.SharedLibraryExtractPath (MiB): <path not set>
	Space in storage for io.netty.native.workdir (MiB): <path not set>
	Space in storage for java.io.tmpdir (MiB): available: 209361.00, total: 935779.13
	Space in storage for workdir (MiB): available: 209361.00, total: 935779.13
	JVM Flags: 2 total; -Xms14000m -Xmx14000m
	Fabric Mods: 
		accurateblockplacement: Accurate Block Placement 1.2.5
		animal_feeding_trough: Animal Feeding Trough 1.1.2+1.21.1
		antique_atlas: Antique Atlas 2.9.17+1.21
			surveyor: Surveyor Map Framework 0.6.23+1.21
		architectury: Architectury 13.0.6
		aurelj_paintings: Aurelj's Vanilla Paintings 1.0.4
		autofish: AutoFish 1.0.3
		axolotlbuckets: Axolotl Buckets 1.2.0
		basicweapons: Basic Weapons 1.2.10+1.21
		bbm: BetterBoatMovement 2.2.3-1.21+fabric
			dev_nyon_konfig: konfig 2.0.2-1.20.4
		bettercombat: Better Combat 2.0.3+1.21.1
		bettercontrols_multiloader: Better Controls (Multiloader) 1.4.0
			bettercontrols: Better Controls 1.4.0
		betterdays: BetterDays 3.1.0.7
			spectrelib: SpectreLib 0.17.2+1.21
		betterthirdperson: Better Third Person 1.9.0
		biomemoss: Biome Moss 1.1.0
		boatbreakfix: Boat Break Fix 1.0.2
		book_and_quick_save: Book and Quick Save 1.1
		bountifulblocks: Bountiful Blocks 1.21-0.9.6
		boxlib: BoxLib 14.3.0
		bridgingmod: Bridging Mod 2.4.0+1.21
		c2me: Concurrent Chunk Management Engine 0.3.0+alpha.0.212+1.21.1
			c2me-base: Concurrent Chunk Management Engine (Base) 0.3.0+alpha.0.212+1.21.1
			c2me-client-uncapvd: Concurrent Chunk Management Engine (Client/Uncap View Distance) 0.3.0+alpha.0.212+1.21.1
			c2me-fixes-chunkio-threading-issues: Concurrent Chunk Management Engine (Fixes/Chunk IO/Threading Issues) 0.3.0+alpha.0.212+1.21.1
			c2me-fixes-general-threading-issues: Concurrent Chunk Management Engine (Fixes/General/Threading Issues) 0.3.0+alpha.0.212+1.21.1
			c2me-fixes-worldgen-threading-issues: Concurrent Chunk Management Engine (Fixes/WorldGen/Threading Issues) 0.3.0+alpha.0.212+1.21.1
			c2me-fixes-worldgen-vanilla-bugs: Concurrent Chunk Management Engine (Fixes/WorldGen/Vanilla Bugs) 0.3.0+alpha.0.212+1.21.1
			c2me-notickvd: Concurrent Chunk Management Engine (No Tick View Distance) 0.3.0+alpha.0.212+1.21.1
			c2me-opts-allocs: Concurrent Chunk Management Engine (Optimizations/Memory Allocations) 0.3.0+alpha.0.212+1.21.1
			c2me-opts-chunk-access: Concurrent Chunk Management Engine (Optimizations/Chunk Access) 0.3.0+alpha.0.212+1.21.1
			c2me-opts-chunkio: Concurrent Chunk Management Engine (Optimizations/Chunk IO) 0.3.0+alpha.0.212+1.21.1
			c2me-opts-math: Concurrent Chunk Management Engine (Optimizations/Math) 0.3.0+alpha.0.212+1.21.1
			c2me-opts-scheduling: Concurrent Chunk Management Engine (Optimizations/Scheduling) 0.3.0+alpha.0.212+1.21.1
			c2me-opts-worldgen-general: Concurrent Chunk Management Engine (Optimizations/General WorldGen) 0.3.0+alpha.0.212+1.21.1
			c2me-opts-worldgen-vanilla: Concurrent Chunk Management Engine (Optimizations/Vanilla WorldGen) 0.3.0+alpha.0.212+1.21.1
			c2me-rewrites-chunk-serializer: Concurrent Chunk Management Engine (Rewrites/Chunk Serializer) 0.3.0+alpha.0.212+1.21.1
			c2me-rewrites-chunk-system: Concurrent Chunk Management Engine (Rewrites/Chunk System) 0.3.0+alpha.0.212+1.21.1
			c2me-rewrites-chunkio: Concurrent Chunk Management Engine (Rewrites/Chunk IO) 0.3.0+alpha.0.212+1.21.1
			c2me-server-utils: Concurrent Chunk Management Engine (Server Utils) 0.3.0+alpha.0.212+1.21.1
			c2me-threading-lighting: Concurrent Chunk Management Engine (Threading/Lighting) 0.3.0+alpha.0.212+1.21.1
			com_ibm_async_asyncutil: asyncutil 0.1.0
			io_reactivex_rxjava3_rxjava: rxjava 3.1.8
			net_objecthunter_exp4j: exp4j 0.4.8
			org_jctools_jctools-core: jctools-core 4.0.5
			org_reactivestreams_reactive-streams: reactive-streams 1.0.4
		cakechomps: Cake Chomps 10.0.0+1.21
		carryon: Carry On 2.2.2
		cat_jam: cat_jam 1.2.3
		cavedust: Cave Dust 3.0.0
			kirin: Kirin UI 1.19.0+1.21
		charmofundying: Charm of Undying 9.0.0+1.21
		chat_heads: Chat Heads 0.13.3
		chunkloaders: Chunk Loaders 1.2.8
		clean_menu: Clean Menu 1.0
		clientsidenoteblocks: ClientSideNoteblocks 2.8
		clientsort: ClientSort 1.0.0
		collective: Collective 7.84
		combat_roll: Combat Roll 2.0.1+1.21.1
		combatnouveau: Combat Nouveau 21.1.1
		comforts: Comforts 9.0.2+1.21.1
		configureddefaults: Configured Defaults 21.1.0
		continuity: Continuity 3.0.0-beta.5+1.21
		controlling: Controlling 19.0.3
		cookyourfood: Cook your food 1.12
		coordinatesdisplay: CoordinatesDisplay 13.1.0
		copperhopper: Copper Hopper 0.10.0+1.21.1
		coroutil: CoroUtil 1.21.0-1.3.7
		cosmetic-armor: Cosmetic Armor 1.7.0
		craftablecapes: CraftableCapes 1.0.3
		craftsman_bows: Craftsman's bows 1.0.1
		crawl: Crawl 0.13.0
		dark-loading-screen: Dark Loading Screen 1.6.14
		darkness: True Darkness Refabricated 1.1.3
		debugify: Debugify 1.21.1+1.0
		discerning_furnace: Discerning Furnace 1.1.1
		display_case: Display Case 1.0
		distantfriends: Distant Friends 0.9.0
		distanthorizons: Distant Horizons 2.2.1-a
			fabric-api-base: Fabric API Base 0.4.42+6573ed8c90
			fabric-key-binding-api-v1: Fabric Key Binding API (v1) 1.0.47+0af3f5a790
		distinguishedpotions: Distinguished Potions 21.1.0
		dogslie: Let Sleeping Dogs Lie 1.3.0
		doorknocking: Door Knocking 1.0.1+1.21
		dramaticdoors: Dramatic Doors (NeoQuiFab) 1.21.1-3.2.7
		duckling: Duckling 5.0.1
			resourcefullib: Resourceful Lib 3.0.0
				com_teamresourceful_bytecodecs: bytecodecs 1.1.0
				com_teamresourceful_yabn: yabn 1.0.3
		dynamic_fps: Dynamic FPS 3.7.3
			net_lostluma_battery: battery 1.1.0
		dynamicsoundfilters: Dynamic Sound Filters 1.4.0+1.21.1
			cloth-config: Cloth Config v15 15.0.1144185
				cloth-basic-math: cloth-basic-math 0.6.1
		easymagic: Easy Magic 21.1.0
		eatinganimationid: Eating Animation 1.21+1.9.72
		elytra_trinket: Elytra Trinket 1.0.9
		emi: EMI 1.1.14+1.21.1+fabric
		enhanced-cats: Enhanced Cats 0.5
		entity_model_features: Entity Model Features 2.2.6
		entity_texture_features: Entity Texture Features 6.2.5
			org_apache_httpcomponents_httpmime: httpmime 4.5.10
		entityculling: EntityCulling 1.7.0
		euphonium: Euphonium 1.0.3+1.21
			folk_sisby_kaleido-config: kaleido-config 0.3.1+1.3.2
		evilcreativefly: Creative Fly 1.4.3-1.21-fabric
		explosiveenhancement: Explosive Enhancement 1.2.3-1.21.0
		fabric-api: Fabric API 0.104.0+1.21.1
			fabric-api-lookup-api-v1: Fabric API Lookup API (v1) 1.6.68+b559734419
			fabric-biome-api-v1: Fabric Biome API (v1) 13.0.29+5bd9f1bc19
			fabric-block-api-v1: Fabric Block API (v1) 1.0.22+0af3f5a719
			fabric-blockrenderlayer-v1: Fabric BlockRenderLayer Registration (v1) 1.1.52+0af3f5a719
			fabric-client-tags-api-v1: Fabric Client Tags 1.1.15+6573ed8c19
			fabric-command-api-v1: Fabric Command API (v1) 1.2.49+f71b366f19
			fabric-command-api-v2: Fabric Command API (v2) 2.2.28+6ced4dd919
			fabric-commands-v0: Fabric Commands (v0) 0.2.66+df3654b319
			fabric-content-registries-v0: Fabric Content Registries (v0) 8.0.16+b559734419
			fabric-convention-tags-v1: Fabric Convention Tags 2.0.22+7f945d5b19
			fabric-convention-tags-v2: Fabric Convention Tags (v2) 2.7.0+4053855719
			fabric-crash-report-info-v1: Fabric Crash Report Info (v1) 0.2.29+0af3f5a719
			fabric-data-attachment-api-v1: Fabric Data Attachment API (v1) 1.1.28+1daea21519
			fabric-data-generation-api-v1: Fabric Data Generation API (v1) 20.2.19+16c4ae2519
			fabric-dimensions-v1: Fabric Dimensions API (v1) 4.0.0+6fc22b9919
			fabric-entity-events-v1: Fabric Entity Events (v1) 1.7.0+2122d82819
			fabric-events-interaction-v0: Fabric Events Interaction (v0) 0.7.12+ba9dae0619
			fabric-game-rule-api-v1: Fabric Game Rule API (v1) 1.0.53+6ced4dd919
			fabric-item-api-v1: Fabric Item API (v1) 11.0.0+afdfc92119
			fabric-item-group-api-v1: Fabric Item Group API (v1) 4.1.5+3fc0e55219
			fabric-keybindings-v0: Fabric Key Bindings (v0) 0.2.45+df3654b319
			fabric-lifecycle-events-v1: Fabric Lifecycle Events (v1) 2.3.12+6c1df36019
			fabric-loot-api-v2: Fabric Loot API (v2) 3.0.14+3f89f5a519
			fabric-loot-api-v3: Fabric Loot API (v3) 1.0.2+3f89f5a519
			fabric-message-api-v1: Fabric Message API (v1) 6.0.13+6573ed8c19
			fabric-model-loading-api-v1: Fabric Model Loading API (v1) 2.0.0+fe474d6b19
			fabric-networking-api-v1: Fabric Networking API (v1) 4.2.2+60c3209b19
			fabric-object-builder-api-v1: Fabric Object Builder API (v1) 15.2.0+40875a9319
			fabric-particles-v1: Fabric Particles (v1) 4.0.2+6573ed8c19
			fabric-recipe-api-v1: Fabric Recipe API (v1) 5.0.12+6508971219
			fabric-registry-sync-v0: Fabric Registry Sync (v0) 5.1.2+60c3209b19
			fabric-renderer-indigo: Fabric Renderer - Indigo 1.7.0+c705a49c19
			fabric-renderer-registries-v1: Fabric Renderer Registries (v1) 3.2.68+df3654b319
			fabric-rendering-v0: Fabric Rendering (v0) 1.1.71+df3654b319
			fabric-rendering-v1: Fabric Rendering (v1) 5.0.5+df16efd019
			fabric-resource-conditions-api-v1: Fabric Resource Conditions API (v1) 4.3.0+8dc279b119
			fabric-screen-api-v1: Fabric Screen API (v1) 2.0.25+8b68f1c719
			fabric-screen-handler-api-v1: Fabric Screen Handler API (v1) 1.3.86+b559734419
			fabric-sound-api-v1: Fabric Sound API (v1) 1.0.23+6573ed8c19
			fabric-transfer-api-v1: Fabric Transfer API (v1) 5.2.0+d38f898f19
			fabric-transitive-access-wideners-v1: Fabric Transitive Access Wideners (v1) 6.1.0+1daea21519
		fabric-language-kotlin: Fabric Language Kotlin 1.12.2+kotlin.2.0.20
			org_jetbrains_kotlin_kotlin-reflect: kotlin-reflect 2.0.20
			org_jetbrains_kotlin_kotlin-stdlib: kotlin-stdlib 2.0.20
			org_jetbrains_kotlin_kotlin-stdlib-jdk7: kotlin-stdlib-jdk7 2.0.20
			org_jetbrains_kotlin_kotlin-stdlib-jdk8: kotlin-stdlib-jdk8 2.0.20
			org_jetbrains_kotlinx_atomicfu-jvm: atomicfu-jvm 0.25.0
			org_jetbrains_kotlinx_kotlinx-coroutines-core-jvm: kotlinx-coroutines-core-jvm 1.9.0
			org_jetbrains_kotlinx_kotlinx-coroutines-jdk8: kotlinx-coroutines-jdk8 1.9.0
			org_jetbrains_kotlinx_kotlinx-datetime-jvm: kotlinx-datetime-jvm 0.6.1
			org_jetbrains_kotlinx_kotlinx-io-bytestring-jvm: kotlinx-io-bytestring-jvm 0.5.4
			org_jetbrains_kotlinx_kotlinx-io-core-jvm: kotlinx-io-core-jvm 0.5.4
			org_jetbrains_kotlinx_kotlinx-serialization-cbor-jvm: kotlinx-serialization-cbor-jvm 1.7.2
			org_jetbrains_kotlinx_kotlinx-serialization-core-jvm: kotlinx-serialization-core-jvm 1.7.2
			org_jetbrains_kotlinx_kotlinx-serialization-json-jvm: kotlinx-serialization-json-jvm 1.7.2
		fabricloader: Fabric Loader 0.16.5
		fallingleaves: Falling Leaves 1.16.2
		farmersdelight: Farmer's Delight 1.21-2.1.9+refabricated
			mm: Manningham Mills 2.3
			porting_lib_base: Porting Lib Base 3.1.0-beta+fdrf.1+1.21
				porting_lib_accessors: Porting Lib Accessors 3.1.0-beta+fdrf.1+1.21
				porting_lib_asm: Porting Lib ASM 3.1.0-beta+fdrf.1+1.21
				porting_lib_attributes: Porting Lib Attributes 3.1.0-beta+fdrf.1+1.21
				porting_lib_common: Porting Lib Common 3.1.0-beta+fdrf.1+1.21
				porting_lib_entity: Porting Lib Entity 3.1.0-beta+fdrf.1+1.21
				porting_lib_extensions: Porting Lib Extensions 3.1.0-beta+fdrf.1+1.21
				porting_lib_fluids: Porting Lib Fluids 3.1.0-beta+fdrf.1+1.21
				porting_lib_gui_utils: Porting Lib Gui Utils 3.1.0-beta+fdrf.1+1.21
				porting_lib_mixin_extensions: Porting Lib Mixin Extensions 3.1.0-beta+fdrf.1+1.21
				porting_lib_tags: Porting Lib Tags 3.0
				porting_lib_transfer: Porting Lib Transfer 3.1.0-beta+fdrf.1+1.21
			porting_lib_config: Porting Lib Config 3.1.0-beta+fdrf.1+1.21
			porting_lib_item_abilities: Porting Lib Item Abilities 3.1.0-beta+fdrf.1+1.21
				porting_lib_blocks: Porting Lib Blocks 3.1.0-beta+fdrf.1+1.21
				porting_lib_level_events: Porting Lib Level Events 3.1.0-beta+fdrf.1+1.21
			porting_lib_lazy_registration: Porting Lib Lazy Register 3.1.0-beta+fdrf.1+1.21
				porting_lib_core: Porting Lib Core 3.1.0-beta+fdrf.1+1.21
				porting_lib_gametest: Porting Lib GameTest 3.1.0-beta+fdrf.1+1.21
			porting_lib_loot: Porting Lib Loot 3.1.0-beta+fdrf.1+1.21
				porting_lib_conditions: Porting Lib Conditions 3.1.0-beta+fdrf.1+1.21
			porting_lib_recipe_book_categories: Porting Lib Recipe Book Categories 3.1.0-beta+fdrf.1+1.21
		faster-random: Faster Random 5.1.0
		ferritecore: FerriteCore 7.0.0
		forgeconfigapiport: Forge Config API Port 21.1.0
			com_electronwill_night-config_core: core 3.8.0
			com_electronwill_night-config_toml: toml 3.8.0
		friendsandfoes: Friends & Foes 3.0.3
		frog-petting: Pet the Frog 1.1-1.21
		frozenlib: FrozenLib 1.8.6-mc1.21.1
		fwaystones: Fabric Waystones 3.3.3+mc1.21
		fzzy_config: Fzzy Config 0.5.0+1.21
			blue_endless_jankson: jankson 1.2.3
			fabric-permissions-api-v0: fabric-permissions-api 0.3.1
			net_peanuuutz_tomlkt_tomlkt-jvm: tomlkt-jvm 0.3.7
		geckolib: GeckoLib 4 4.6.6
		glowing-torchflower: Glowing Torchflower 1.1.0
		guiclock: GUI Clock 4.6
		harvest: Harvest 1.3.1
		healthindicators: Health Indicators 21.1.3
		heartymeals: Hearty Meals 1.21-r2
			midnightlib: MidnightLib 1.5.8
		hideexperimentalwarning: Hide Experimental Warning 1.2
		hidehands: Hide Hands 4.4
		horsebuff: HorseBuff 2.1.8
		hotbarcycle: Hotbar Cycle 1.1.2
		ice_boat_nerf: Ice Boat Nerf 1.1.1
		ichunutil: iChunUtil 1.0.0
		immediatelyfast: ImmediatelyFast 1.2.21+1.21.1
			net_lenni0451_reflect: Reflect 1.3.4
		incapacitated: Incapacitated 1.8.1
		indypets: IndyPets - Independent Pets 1.4.3
		inmis: Inmis 2.8.1-1.21.1
		inmisaddon: InmisAddon 1.0.4
		interactic: Interactic 0.2.3+1.21
		invmove: InvMove 0.8.8
		invmovecompats: InvMoveCompats 0.3.2
		item-placer: Item placer 1.9.1
		item_obliterator: Item Obliterator 3.1.1
		jade: Jade 15.4.1+fabric
		java: OpenJDK 64-Bit Server VM 21
		jump_sounds: Jump Sounds 1.4.3
		jumpoverfences: Jump Over Fences 1.6.0
		keybindfixplus: Keybind Fix Plus 2.0.0
		kilnreborn: Kiln Reborn 1.2.0-1.21
		krypton: Krypton 0.2.8
			com_velocitypowered_velocity-native: velocity-native 3.3.0-SNAPSHOT
		leahs-immersive-thunder: Immersive Thunder 1.21.1+1.2.2
		lithium: Lithium 0.13.1
		lolmblv: More Barrel Variants 1.6.0
		lolmbv: More Bookshelf Variants 1.0.4
		lolmcbv: More Chiseled Bookshelf Variants 1.6.1
		lolmct: More Crafting Tables 1.2.8
		lolmcv: More Chest Variants 1.5.6
		lolmsv: More Shield Variants 1.2.2
		make_bubbles_pop: Make Bubbles Pop 0.3.0-fabric
		maptooltip: Map Tooltip 4.0.0
		memories-are-all-we-have: Memories Are All We Have 1.1.0+1.20.4
		minecart-turning: Minecart Turning 1.1.0+1.20-1.21
		minecraft: Minecraft 1.21.1
		modernfix: ModernFix 5.19.3+mc1.21.1
		modmenu: Mod Menu 11.0.2
		moreculling: More Culling 1.0.0-beta.1
			conditional-mixin: conditional mixin 0.6.3
			mixinsquared: MixinSquared 0.2.0
		moremobvariants: More Mob Variants 1.3.1.1
		mousetweaks: Mouse Tweaks 2.26
		mr_banner_text: Banner Text 1.3.2
		mru: Mineblock's Repeated Utilities 1.0.2+1.21+fabric
		mstv-base: More Stick Variants (MStV) 1.2.0
		music_sync: Music Sync 1.3
		necronomicon: Necronomicon 1.5.0
		nmc: No Mining Cooldown 2.3
		no-telemetry: No Telemetry 1.8.0
		nochatreports: No Chat Reports 1.21-v2.8.0
		notenoughanimations: NotEnoughAnimations 1.7.6
		notenoughcrashes: Not Enough Crashes 4.4.8+1.21
		nyfsspiders: Nyf's Spiders 2.3.1
			commonnetworking: Common Network 1.0.11-1.21
		optimaleat: Optimal Eat 1.2
		owo: oωo 0.12.14+1.21
			io_wispforest_endec: endec 0.1.5
			io_wispforest_endec_gson: gson 0.1.3
			io_wispforest_endec_jankson: jankson 0.1.3
			io_wispforest_endec_netty: netty 0.1.2
		particle_core: Particle Core 0.2.4+1.21
		particlerain: Particle Rain 2.1.4
		paxi: Paxi 1.21-Fabric-5.0.0
		petowner: Pet Owner 1.8.7-1.21+
		photography: Photography 1.0.4+mc1.21
		pickupnotifier: Pick Up Notifier 21.1.0
		plasmovoice: Plasmo Voice 2.1.0
		playeranimator: Player Animator 2.0.0-alpha1+1.21
		polydecorations: PolyDecorations 0.4.4+1.21.1
		polydex: Polydex 1.2.4+1.21.1
			player-data-api: Player Data API 0.6.0+1.21
		polydex-bridge: PolydexBridge 1.0.1+mc.1.21.1
		polyfactory: PolyFactory 0.4.2+1.21.1
			factorytools: FactoryTools 0.3.2+1.21
			graphlib: Graph Lib 2.0.3+1.21
				codextra: Codextra 2.0.0+1.21
				common_events: Common Events 1.0.0+1.21
			map-canvas-api: Map Canvas API 0.4.2+1.21.1
			sidebar-api: Sidebar API 0.5.1+1.21.1
		polymer-bundled: Polymer 0.9.16+1.21.1
			polymer-blocks: Polymer (Textured Blocks) 0.9.16+1.21.1
			polymer-common: Polymer (Common) 0.9.16+1.21.1
				packet_tweaker: Packet Tweaker 0.5.5+1.21
			polymer-core: Polymer (Core) 0.9.16+1.21.1
				polymer-networking: Polymer (Networking) 0.9.16+1.21.1
				polymer-registry-sync-manipulator: Polymer (Registry Sync Manipulator) 0.9.16+1.21.1
			polymer-resource-pack: Polymer (Resource Pack) 0.9.16+1.21.1
			polymer-virtual-entity: Polymer (Virtual Entity) 0.9.16+1.21.1
		polymorph: Polymorph 1.0.6+1.21.1
			cardinal-components-block: Cardinal Components API (blocks) 6.1.0
		pumpkin_pie: Pumpkin Pie Delight 1.0.1+1.21
		puzzleslib: Puzzles Lib 21.1.16
		quad: Quad 1.3.0-beta.5
		quad-lolmbdv: More Bed Variants 1.4.0
		quad-mstv-mtv: More Torch Variants (MStV+) 1.0.2
		quickmenu: Quick Menu 1.2.4
		real-arrow-tip: Real Arrow Tip 0.1.1+mc1.21.0
		redbits-common: Red Bits 1.16.6
			redbits: Red Bits 1.16.6
				interference: Interference API 1.11.0
		reeses-sodium-options: Reese's Sodium Options 1.8.0-beta.4+mc1.21.1
		respawnablepets: Respawnable Pets 1.21-r1
			cardinal-components-base: Cardinal Components API (base) 6.1.1
			cardinal-components-entity: Cardinal Components API (entities) 6.1.1
			cardinal-components-world: Cardinal Components API (worlds) 6.1.1
		scribble: Scribble 1.3.1
		searchables: Searchables 1.0.1
		seasons: Fabric Seasons 2.4.1-BETA+1.21
		seasonsextras: Fabric Seasons: Extras 1.3.2-BETA+1.21
		selectivemining: SelectiveMining 2.0
		shulkerboxtooltip: Shulker Box Tooltip 5.1.1+1.21
		shutter: Shutter 1.1
		shutupdeadentities: ShutUpDeadEntities 1.1
		simple_copper_pipes: Simple Copper Pipes 2.0
		skinlayers3d: 3d-Skin-Layers 1.6.7
		smallships: Small Ships 2.0.0-b1.5
		sodium: Sodium 0.6.0-beta.2+mc1.21.1
			fabric-block-view-api-v2: Fabric BlockView API (v2) 1.0.10+6573ed8c19
			fabric-renderer-api-v1: Fabric Renderer API (v1) 3.4.0+c705a49c19
			fabric-rendering-data-attachment-v1: Fabric Rendering Data Attachment (v1) 0.3.48+73761d2e19
			fabric-rendering-fluids-v1: Fabric Rendering Fluids (v1) 3.1.6+1daea21519
			fabric-resource-loader-v0: Fabric Resource Loader (v0) 1.3.0+5659912919
		sodiumdynamiclights: Sodium Dynamic Lights 1.0.8
		sounds: Sounds 2.1.0+1.21+fabric
			mixinextras: MixinExtras 0.5.0-beta.2
		stackdeobfuscator: StackDeobfuscator 1.4.3+08e71cc
			net_fabricmc_mapping-io: mapping-io 0.6.1
			stackdeobfuscator-common: StackDeobfuscator Common 1.4.3+08e71cc
		stackrefill: Stack Refill 4.5
		statuseffecttimer: Status Effect Timer 1.2.0+1.21
		storagedelight: Storage Delight 24.9.11-1.21-fabric
		suggestion_tweaker: Suggestion Tweaker 1.20.6-1.5.2
		supermartijn642configlib: SuperMartijn642's Config Lib 1.1.8
		supermartijn642corelib: SuperMartijn642's Core Lib 1.1.17+c
		surveystones: Surveystones 1.3.1+1.21
		symbol-chat: Symbol Chat 1.21-1.2.7
		taxfreelevels: Tax Free Levels 1.3.12
		thecopperrail: The Copper Rail 0.9.4
		thornybushprotection: Thorny Bush Protection 1.4
		tia: Tiny Item Animations 1.2.1
		trashcans: Trash Cans 1.0.18
			team_reborn_energy: Energy 4.1.0
		trinkets: Trinkets 3.10.0
		universal-graves: Universal Graves 3.4.4+1.21
			common-protection-api: Common Protection API 1.0.0
			placeholder-api: Placeholder API 2.4.1+1.21
			predicate-api: Predicate API 0.5.1+1.21
			server_translations_api: Server Translations API 2.3.1+1.21-pre2
			sgui: sgui 1.6.0+1.21
		valhelsia_core: Valhelsia Core 1.1.2
		valhelsia_furniture: Valhelsia Furniture 1.1.0
		villagerhats: Villager Hats 1.7.2+1.21
		vistas: Vistas 2.7.0
		visuality: Visuality 0.7.7+1.21
		visualoverhaul: VisualOverhaul 5.2.1
		visualworkbench: Visual Workbench 21.1.0
		walk-jog-run: Walk, Jog, Run 1.1.1+1.21
		watut: What Are They Up To 1.21.0-1.1.3
		yet_another_config_lib_v3: YetAnotherConfigLib 3.5.0+1.21-fabric
			com_twelvemonkeys_common_common-image: common-image 3.10.0
			com_twelvemonkeys_common_common-io: common-io 3.10.0
			com_twelvemonkeys_common_common-lang: common-lang 3.10.0
			com_twelvemonkeys_imageio_imageio-core: imageio-core 3.10.0
			com_twelvemonkeys_imageio_imageio-metadata: imageio-metadata 3.10.0
			com_twelvemonkeys_imageio_imageio-webp: imageio-webp 3.10.0
			org_quiltmc_parsers_gson: gson 0.2.1
			org_quiltmc_parsers_json: json 0.2.1
		you_died: You Died 4.0.0.19
		yungsapi: YUNG's API 1.21-Fabric-5.0.0
			org_javassist_javassist: javassist 3.29.2-GA
			org_reflections_reflections: reflections 0.10.2
		yungsmenutweaks: YUNG's Menu Tweaks 1.21-Fabric-2.0.0
		zoomify: Zoomify 2.14.0+1.21
			com_akuleshov7_ktoml-core-jvm: ktoml-core-jvm 0.5.1
	Client Crashes Since Restart: 1
	Integrated Server Crashes Since Restart: 0
	Suspected Mods: Minecraft (minecraft), Fabric Registry Sync (v0) (fabric-registry-sync-v0), Fabric Loader (fabricloader)

Description

Heyo, I'm playing around with a mid sized mod-pack and I'm getting a strange crash when disconnecting from a dedicated server running the same mod-set. The issue doesn't happen in singleplayer. The crash report only mentions Fabric Registry Sync as involved, but I suspect some mod being the cause.. problem is I can't imagine a way to debug it without removing and re-adding every mod one at a time.. basically I'm looking for some faster way to find the "bad" mod, any ideas?

[ViciousBadger]

I FOUND it after an entire day of tinkering, the issue was the Photography mod and the problem was found by hacking the Fabric API to include a bunch of console-logging.. something in the sound registry was messed up.. anyway all is good and I am happy.