My latest.log:

[20:35:50] [main/INFO]: Loading Minecraft 1.20.4 with Fabric Loader 0.15.3
[20:35:50] [main/INFO]: Loading 59 mods:
	- bclib 3.30.1
	   \-- wunderlib 1.30.0
	- fabric-api 0.93.1+1.20.4
	   |-- fabric-api-base 0.4.35+78d798af4f
	   |-- fabric-api-lookup-api-v1 1.6.46+82b1bb3e4f
	   |-- fabric-biome-api-v1 13.0.15+78d798af4f
	   |-- fabric-block-api-v1 1.0.14+78d798af4f
	   |-- fabric-block-view-api-v2 1.0.3+78d798af4f
	   |-- fabric-blockrenderlayer-v1 1.1.45+78d798af4f
	   |-- fabric-client-tags-api-v1 1.1.6+78d798af4f
	   |-- fabric-command-api-v1 1.2.40+f71b366f4f
	   |-- fabric-command-api-v2 2.2.19+78d798af4f
	   |-- fabric-commands-v0 0.2.57+df3654b34f
	   |-- fabric-containers-v0 0.1.83+df3654b34f
	   |-- fabric-content-registries-v0 5.0.9+78d798af4f
	   |-- fabric-convention-tags-v1 1.5.9+78d798af4f
	   |-- fabric-crash-report-info-v1 0.2.22+78d798af4f
	   |-- fabric-data-generation-api-v1 13.1.19+78d798af4f
	   |-- fabric-dimensions-v1 2.1.60+78d798af4f
	   |-- fabric-entity-events-v1 1.5.28+4ced05924f
	   |-- fabric-events-interaction-v0 0.7.0+389931eb4f
	   |-- fabric-events-lifecycle-v0 0.2.71+df3654b34f
	   |-- fabric-game-rule-api-v1 1.0.45+78d798af4f
	   |-- fabric-item-api-v1 2.1.34+78d798af4f
	   |-- fabric-item-group-api-v1 4.0.20+78d798af4f
	   |-- fabric-key-binding-api-v1 1.0.40+78d798af4f
	   |-- fabric-keybindings-v0 0.2.38+df3654b34f
	   |-- fabric-lifecycle-events-v1 2.2.29+78d798af4f
	   |-- fabric-loot-api-v2 2.1.4+78d798af4f
	   |-- fabric-message-api-v1 6.0.4+78d798af4f
	   |-- fabric-mining-level-api-v1 2.1.59+78d798af4f
	   |-- fabric-model-loading-api-v1 1.0.7+78d798af4f
	   |-- fabric-models-v0 0.4.6+9386d8a74f
	   |-- fabric-networking-api-v1 3.1.4+b7e146354f
	   |-- fabric-object-builder-api-v1 13.0.8+06274a474f
	   |-- fabric-particles-v1 1.1.6+78d798af4f
	   |-- fabric-recipe-api-v1 2.0.17+78d798af4f
	   |-- fabric-registry-sync-v0 4.0.15+78d798af4f
	   |-- fabric-renderer-api-v1 3.2.3+78d798af4f
	   |-- fabric-renderer-indigo 1.5.3+78d798af4f
	   |-- fabric-renderer-registries-v1 3.2.50+df3654b34f
	   |-- fabric-rendering-data-attachment-v1 0.3.41+73761d2e4f
	   |-- fabric-rendering-fluids-v1 3.0.32+78d798af4f
	   |-- fabric-rendering-v0 1.1.53+df3654b34f
	   |-- fabric-rendering-v1 3.0.12+78d798af4f
	   |-- fabric-resource-conditions-api-v1 2.3.13+78d798af4f
	   |-- fabric-resource-loader-v0 0.11.15+78d798af4f
	   |-- fabric-screen-api-v1 2.0.16+78d798af4f
	   |-- fabric-screen-handler-api-v1 1.3.52+78d798af4f
	   |-- fabric-sound-api-v1 1.0.16+78d798af4f
	   |-- fabric-transfer-api-v1 4.0.7+e84342304f
	   \-- fabric-transitive-access-wideners-v1 5.0.13+78d798af4f
	- fabricloader 0.15.3
	   \-- mixinextras 0.3.2
	- java 17
	- minecraft 1.20.4
	- terrablender 3.3.0.9
	   |-- com_electronwill_night-config_core 3.6.7
	   \-- com_electronwill_night-config_toml 3.6.7
[20:35:50] [main/INFO]: SpongePowered MIXIN Subsystem Version=0.8.5 Source=file:/home/dylan/.var/app/org.prismlauncher.PrismLauncher/data/PrismLauncher/libraries/net/fabricmc/sponge-mixin/0.12.5+mixin.0.8.5/sponge-mixin-0.12.5+mixin.0.8.5.jar Service=Knot/Fabric Env=CLIENT
[20:35:50] [main/INFO]: Compatibility level set to JAVA_17
[20:35:51] [main/INFO]: Initializing MixinExtras via com.llamalad7.mixinextras.service.MixinExtrasServiceImpl(version=0.3.2).
[20:35:52] [Datafixer Bootstrap/INFO]: 198 Datafixer optimizations took 73 milliseconds
[20:35:53] [Render thread/INFO]: Environment: Environment[sessionHost=https://sessionserver.mojang.com, servicesHost=https://api.minecraftservices.com, name=PROD]
[20:35:53] [Render thread/INFO]: Setting user: LordOfTheWeebs
[20:35:53] [Render thread/INFO]: [bclib] Added Config bclib.generator to auto sync (file hash)
[20:35:53] [Render thread/INFO]: [bclib] Added Config bclib.main to auto sync (content diff)
[20:35:53] [Render thread/INFO]: [bclib] Added Config bclib.biomes to auto sync (file hash)
[20:35:54] [Thread-4/INFO]: [bclib] Received Version Info for minecraft=1.20.4, loader=fabric
[20:35:54] [Thread-4/INFO]: [bclib]  - bclib:3.30.1
[20:35:54] [Render thread/INFO]: [Indigo] Registering Indigo renderer!
[20:35:54] [Render thread/INFO]: Backend library: LWJGL version 3.3.2-snapshot
[20:35:54] [Render thread/INFO]: Reloading ResourceManager: vanilla, fabric (bclib, fabric-api, fabric-api-base, fabric-api-lookup-api-v1, fabric-biome-api-v1, fabric-block-api-v1, fabric-block-view-api-v2, fabric-blockrenderlayer-v1, fabric-client-tags-api-v1, fabric-command-api-v1, fabric-command-api-v2, fabric-commands-v0, fabric-containers-v0, fabric-content-registries-v0, fabric-convention-tags-v1, fabric-crash-report-info-v1, fabric-data-generation-api-v1, fabric-dimensions-v1, fabric-entity-events-v1, fabric-events-interaction-v0, fabric-events-lifecycle-v0, fabric-game-rule-api-v1, fabric-item-api-v1, fabric-item-group-api-v1, fabric-key-binding-api-v1, fabric-keybindings-v0, fabric-lifecycle-events-v1, fabric-loot-api-v2, fabric-message-api-v1, fabric-mining-level-api-v1, fabric-model-loading-api-v1, fabric-models-v0, fabric-networking-api-v1, fabric-object-builder-api-v1, fabric-particles-v1, fabric-recipe-api-v1, fabric-registry-sync-v0, fabric-renderer-api-v1, fabric-renderer-indigo, fabric-renderer-registries-v1, fabric-rendering-data-attachment-v1, fabric-rendering-fluids-v1, fabric-rendering-v0, fabric-rendering-v1, fabric-resource-conditions-api-v1, fabric-resource-loader-v0, fabric-screen-api-v1, fabric-screen-handler-api-v1, fabric-sound-api-v1, fabric-transfer-api-v1, fabric-transitive-access-wideners-v1, fabricloader, terrablender)
[20:35:55] [Worker-Main-15/INFO]: Found unifont_all_no_pua-15.1.04.hex, loading
[20:35:55] [Worker-Main-2/WARN]: File minecraft:sounds/mob/wolf/armor_equip1.ogg does not exist, cannot add it to event minecraft:entity.wolf.armor_equip
[20:35:55] [Worker-Main-2/WARN]: File minecraft:sounds/mob/wolf/armor_equip1.ogg does not exist, cannot add it to event minecraft:entity.wolf.armor_equip
[20:35:55] [Worker-Main-2/WARN]: File minecraft:sounds/mob/wolf/armor_equip2.ogg does not exist, cannot add it to event minecraft:entity.wolf.armor_equip
[20:35:55] [Worker-Main-2/WARN]: File minecraft:sounds/mob/wolf/armor_equip2.ogg does not exist, cannot add it to event minecraft:entity.wolf.armor_equip
[20:35:55] [Worker-Main-2/WARN]: File minecraft:sounds/mob/wolf/armor_unequip1.ogg does not exist, cannot add it to event minecraft:entity.wolf.armor_unequip
[20:35:55] [Worker-Main-2/WARN]: File minecraft:sounds/mob/wolf/armor_unequip2.ogg does not exist, cannot add it to event minecraft:entity.wolf.armor_unequip
[20:35:55] [Render thread/WARN]: Missing sound for event: minecraft:item.goat_horn.play
[20:35:55] [Render thread/WARN]: Missing sound for event: minecraft:entity.goat.screaming.horn_break
[20:35:55] [Render thread/INFO]: OpenAL initialized on device Starship/Matisse HD Audio Controller Analog Stereo
[20:35:55] [Render thread/INFO]: Sound engine started
[20:35:55] [Render thread/INFO]: Created: 1024x512x4 minecraft:textures/atlas/blocks.png-atlas
[20:35:55] [Render thread/INFO]: Created: 256x256x4 minecraft:textures/atlas/signs.png-atlas
[20:35:55] [Render thread/INFO]: Created: 512x512x4 minecraft:textures/atlas/banner_patterns.png-atlas
[20:35:55] [Render thread/INFO]: Created: 512x512x4 minecraft:textures/atlas/shield_patterns.png-atlas
[20:35:55] [Render thread/INFO]: Created: 1024x1024x4 minecraft:textures/atlas/armor_trims.png-atlas
[20:35:55] [Render thread/INFO]: Created: 256x256x4 minecraft:textures/atlas/chest.png-atlas
[20:35:55] [Render thread/INFO]: Created: 128x64x4 minecraft:textures/atlas/decorated_pot.png-atlas
[20:35:55] [Render thread/INFO]: Created: 512x256x4 minecraft:textures/atlas/beds.png-atlas
[20:35:55] [Render thread/INFO]: Created: 512x256x4 minecraft:textures/atlas/shulker_boxes.png-atlas
[20:35:56] [Render thread/WARN]: Shader rendertype_entity_translucent_emissive could not find sampler named Sampler2 in the specified shader program.
[20:35:56] [Render thread/INFO]: Created: 512x256x0 minecraft:textures/atlas/particles.png-atlas
[20:35:56] [Render thread/INFO]: Created: 256x256x0 minecraft:textures/atlas/paintings.png-atlas
[20:35:56] [Render thread/INFO]: Created: 128x128x0 minecraft:textures/atlas/mob_effects.png-atlas
[20:35:56] [Render thread/INFO]: Created: 1024x512x0 minecraft:textures/atlas/gui.png-atlas
[20:36:09] [Render thread/INFO]: [bclib] Updating Pickers for BCLib - The End  BiomeSource (535a3ce6)
[20:36:09] [Render thread/INFO]: [bclib] Unable to build Biome List yet
[20:36:09] [Render thread/INFO]: [bclib] No Void Biomes found. Disabling by using barrens
[20:36:09] [Render thread/INFO]: [bclib] No Barrens Biomes found. Disabling by using land Biomes
[20:36:09] [Render thread/WARN]: [bclib] No Center Island Biomes found. Forcing use of vanilla center.
[20:36:09] [Render thread/INFO]: [bclib] Make sure features are loaded from terrablender:org.betterx.bclib.api.v2.generator.BCLibEndBiomeSource
[20:36:09] [Render thread/INFO]: [bclib] Updating Pickers for BCLib - Nether BiomeSource (428f1f6e)
[20:36:09] [Render thread/INFO]: [bclib] Unable to build Biome List yet
[20:36:09] [Render thread/INFO]: [bclib] Make sure features are loaded from terrablender:org.betterx.bclib.api.v2.generator.BCLibNetherBiomeSource
[20:36:09] [Render thread/INFO]: [bclib] Updating Pickers for BCLib - The End  BiomeSource (3124924e)
[20:36:09] [Render thread/INFO]: [bclib] Unable to build Biome List yet
[20:36:09] [Render thread/INFO]: [bclib] No Void Biomes found. Disabling by using barrens
[20:36:09] [Render thread/INFO]: [bclib] No Barrens Biomes found. Disabling by using land Biomes
[20:36:09] [Render thread/WARN]: [bclib] No Center Island Biomes found. Forcing use of vanilla center.
[20:36:09] [Render thread/INFO]: [bclib] Make sure features are loaded from terrablender:org.betterx.bclib.api.v2.generator.BCLibEndBiomeSource
[20:36:09] [Render thread/INFO]: [bclib] Updating Pickers for BCLib - Nether BiomeSource (2947761a)
[20:36:09] [Render thread/INFO]: [bclib] Unable to build Biome List yet
[20:36:09] [Render thread/INFO]: [bclib] Make sure features are loaded from terrablender:org.betterx.bclib.api.v2.generator.BCLibNetherBiomeSource
[20:36:09] [Render thread/INFO]: [bclib] Updating Pickers for BCLib - The End  BiomeSource (29c34fa4)
[20:36:09] [Render thread/INFO]: [bclib] Unable to build Biome List yet
[20:36:09] [Render thread/INFO]: [bclib] No Void Biomes found. Disabling by using barrens
[20:36:09] [Render thread/INFO]: [bclib] No Barrens Biomes found. Disabling by using land Biomes
[20:36:09] [Render thread/WARN]: [bclib] No Center Island Biomes found. Forcing use of vanilla center.
[20:36:09] [Render thread/INFO]: [bclib] Make sure features are loaded from terrablender:org.betterx.bclib.api.v2.generator.BCLibEndBiomeSource
[20:36:09] [Render thread/INFO]: [bclib] Updating Pickers for BCLib - Nether BiomeSource (2a013e57)
[20:36:09] [Render thread/INFO]: [bclib] Unable to build Biome List yet
[20:36:09] [Render thread/INFO]: [bclib] Make sure features are loaded from terrablender:org.betterx.bclib.api.v2.generator.BCLibNetherBiomeSource
[20:36:09] [Render thread/INFO]: [bclib] Updating Pickers for BCLib - The End  BiomeSource (3ef5400f)
[20:36:09] [Render thread/INFO]: [bclib] Unable to build Biome List yet
[20:36:09] [Render thread/INFO]: [bclib] No Void Biomes found. Disabling by using barrens
[20:36:09] [Render thread/INFO]: [bclib] No Barrens Biomes found. Disabling by using land Biomes
[20:36:09] [Render thread/WARN]: [bclib] No Center Island Biomes found. Forcing use of vanilla center.
[20:36:09] [Render thread/INFO]: [bclib] Make sure features are loaded from terrablender:org.betterx.bclib.api.v2.generator.BCLibEndBiomeSource
[20:36:09] [Render thread/INFO]: [bclib] Updating Pickers for BCLib - Nether BiomeSource (6089b1d7)
[20:36:09] [Render thread/INFO]: [bclib] Unable to build Biome List yet
[20:36:09] [Render thread/INFO]: [bclib] Make sure features are loaded from terrablender:org.betterx.bclib.api.v2.generator.BCLibNetherBiomeSource
[20:36:09] [Render thread/WARN]: [bclib] No valid BCLBiome Registry available!
[20:36:09] [Render thread/WARN]: [bclib] No valid Biome Registry available!
[20:36:09] [Worker-Main-5/ERROR]: Couldn't load tag c:mycelium as it is missing following references: #c:nether_mycelium (from fabric)
[20:36:09] [Worker-Main-5/ERROR]: Couldn't load tag c:nether_terrain as it is missing following references: #c:nether_mycelium (from fabric)
[20:36:09] [Worker-Main-5/ERROR]: Couldn't load tag c:terrain as it is missing following references: #c:mycelium (from fabric), #c:nether_terrain (from fabric)
[20:36:09] [Worker-Main-5/ERROR]: Couldn't load tag c:grass_soil as it is missing following references: #c:terrain (from fabric)
[20:36:09] [Worker-Main-5/ERROR]: Couldn't load tag c:workstation/fisherman as it is missing following references: #c:barrel (from fabric)
[20:36:09] [Worker-Main-5/ERROR]: Couldn't load tag minecraft:mineable/axe as it is missing following references: #c:wooden_chests (from fabric), #c:wooden_composter (from fabric), #c:workbench (from fabric)
[20:36:09] [Render thread/INFO]: [bclib] Disabling Recipe: bclib:test_star
[20:36:09] [Render thread/INFO]: Loaded 7 recipes
[20:36:10] [Render thread/INFO]: Loaded 1282 advancements
[20:36:11] [Render thread/INFO]: [DataFixerAPI] Applying Patch{bclib:3.0.11:12582923}
[20:36:11] [Render thread/INFO]: [DataFixerAPI] Updating Patch-Level for 'bclib' from 0.0.0 to 3.0.11
[20:36:11] [Render thread/INFO]: [bclib] Updating Pickers for BCLib - Nether BiomeSource (62abef3c)
[20:36:11] [Render thread/INFO]: [bclib] Make sure features are loaded from terrablender:org.betterx.bclib.api.v2.generator.BCLibNetherBiomeSource
[20:36:11] [Render thread/INFO]: [bclib] Updating Pickers for BCLib - The End  BiomeSource (14c15bdf)
[20:36:11] [Render thread/INFO]: [bclib] Make sure features are loaded from terrablender:org.betterx.bclib.api.v2.generator.BCLibEndBiomeSource
[20:36:11] [Render thread/INFO]: [bclib] Enforcing Correct Generator for minecraft:the_nether.
[20:36:11] [Render thread/INFO]: [bclib] Updating Pickers for BCLib - Nether BiomeSource (62abef3c)
[20:36:11] [Render thread/INFO]: [bclib] Make sure features are loaded from terrablender:org.betterx.bclib.api.v2.generator.BCLibNetherBiomeSource
[20:36:11] [Render thread/ERROR]: Reported exception thrown!
net.minecraft.class_148: mouseClicked event handler
	at net.minecraft.class_437.method_25412(class_437.java:419) ~[client-intermediary.jar:?]
	at net.minecraft.class_312.method_1601(class_312.java:99) ~[client-intermediary.jar:?]
	at net.minecraft.class_312.method_22686(class_312.java:180) ~[client-intermediary.jar:?]
	at net.minecraft.class_1255.execute(class_1255.java:102) ~[client-intermediary.jar:?]
	at net.minecraft.class_312.method_22684(class_312.java:180) ~[client-intermediary.jar:?]
	at org.lwjgl.glfw.GLFWMouseButtonCallbackI.callback(GLFWMouseButtonCallbackI.java:43) ~[lwjgl-glfw-3.3.2.jar:?]
	at org.lwjgl.system.JNI.invokeV(Native Method) ~[lwjgl-3.3.2.jar:?]
	at org.lwjgl.glfw.GLFW.glfwWaitEventsTimeout(GLFW.java:3509) ~[lwjgl-glfw-3.3.2.jar:?]
	at com.mojang.blaze3d.systems.RenderSystem.limitDisplayFPS(RenderSystem.java:238) ~[client-intermediary.jar:?]
	at net.minecraft.class_310.method_1523(class_310.java:1352) ~[client-intermediary.jar:?]
	at net.minecraft.class_310.method_1514(class_310.java:888) ~[client-intermediary.jar:?]
	at net.minecraft.client.main.Main.main(Main.java:265) ~[minecraft-1.20.4-client.jar:?]
	at net.fabricmc.loader.impl.game.minecraft.MinecraftGameProvider.launch(MinecraftGameProvider.java:470) ~[fabric-loader-0.15.3.jar:?]
	at net.fabricmc.loader.impl.launch.knot.Knot.launch(Knot.java:74) ~[fabric-loader-0.15.3.jar:?]
	at net.fabricmc.loader.impl.launch.knot.KnotClient.main(KnotClient.java:23) ~[fabric-loader-0.15.3.jar:?]
	at org.prismlauncher.launcher.impl.StandardLauncher.launch(StandardLauncher.java:87) ~[NewLaunch.jar:?]
	at org.prismlauncher.EntryPoint.listen(EntryPoint.java:130) ~[NewLaunch.jar:?]
	at org.prismlauncher.EntryPoint.main(EntryPoint.java:70) ~[NewLaunch.jar:?]
Caused by: java.lang.NullPointerException: Cannot invoke "java.util.Set.stream()" because "this.tbPossibleBiomes" is null
	at net.minecraft.class_2169.handler$zpe000$terrablender$onCollectPossibleBiomes(class_2169.java:1103) ~[client-intermediary.jar:?]
	at net.minecraft.class_2169.method_49494(class_2169.java) ~[client-intermediary.jar:?]
	at net.minecraft.class_1966.method_49495(class_1966.java:31) ~[client-intermediary.jar:?]
	at com.google.common.base.Suppliers$NonSerializableMemoizingSupplier.get(Suppliers.java:181) ~[guava-32.1.2-jre.jar:?]
	at net.minecraft.class_1966.redirect$zdl000$fabric-biome-api-v1$getBiomes(class_1966.java:1534) ~[client-intermediary.jar:?]
	at net.minecraft.class_1966.method_28443(class_1966.java:41) ~[client-intermediary.jar:?]
	at org.betterx.worlds.together.levelgen.BiomeRepairHelper.registerAllBiomesFromVanillaDimension(BiomeRepairHelper.java:121) ~[bclib-3.30.1.jar:?]
	at org.betterx.worlds.together.levelgen.BiomeRepairHelper.repairBiomeSourceInAllDimensions(BiomeRepairHelper.java:47) ~[bclib-3.30.1.jar:?]
	at org.betterx.worlds.together.levelgen.WorldGenUtil.repairBiomeSourceInAllDimensions(WorldGenUtil.java:128) ~[bclib-3.30.1.jar:?]
	at org.betterx.worlds.together.world.event.WorldBootstrap.enforceInLayeredRegistry(WorldBootstrap.java:329) ~[bclib-3.30.1.jar:?]
	at net.minecraft.class_6904.localvar$zzk000$bclib$wt_bake(class_6904.java:517) ~[client-intermediary.jar:?]
	at net.minecraft.class_6904.<init>(class_6904.java:7) ~[client-intermediary.jar:?]
	at net.minecraft.class_7196.method_41889(class_7196.java:131) ~[client-intermediary.jar:?]
	at net.minecraft.class_525.method_41847(class_525.java:444) ~[client-intermediary.jar:?]
	at net.minecraft.class_525.method_45683(class_525.java:426) ~[client-intermediary.jar:?]
	at net.minecraft.class_7196.handler$zpf000$terrablender$skipConfirmation(class_7196.java:1035) ~[client-intermediary.jar:?]
	at net.minecraft.class_7196.method_41892(class_7196.java) ~[client-intermediary.jar:?]
	at net.minecraft.class_525.method_2736(class_525.java:426) ~[client-intermediary.jar:?]
	at net.minecraft.class_525.method_19922(class_525.java:379) ~[client-intermediary.jar:?]
	at net.minecraft.class_4185.method_25306(class_4185.java:95) ~[client-intermediary.jar:?]
	at net.minecraft.class_4264.method_25348(class_4264.java:48) ~[client-intermediary.jar:?]
	at net.minecraft.class_339.method_25402(class_339.java:145) ~[client-intermediary.jar:?]
	at net.minecraft.class_4069.method_25402(class_4069.java:38) ~[client-intermediary.jar:?]
	at net.minecraft.class_312.method_1611(class_312.java:99) ~[client-intermediary.jar:?]
	at net.minecraft.class_437.method_25412(class_437.java:414) ~[client-intermediary.jar:?]
	... 17 more

Any Terrablender version from 3.3.0.6 to 3.3.0.9