---- Minecraft Crash Report ---- // There are four lights! Time: 2025-06-19 16:24:28 Description: Unexpected error java.lang.AssertionError: Can't. at knot//net.minecraft.class_1921.iris$getRenderTarget(class_1921.java:851) at knot//net.irisshaders.iris.layer.OuterWrappedRenderType.iris$getRenderTarget(OuterWrappedRenderType.java:88) at knot//net.irisshaders.batchedentityrendering.impl.FullyBufferedMultiBufferSource.method_22993(FullyBufferedMultiBufferSource.java:161) at knot//net.irisshaders.iris.shadows.ShadowRenderer.renderShadows(ShadowRenderer.java:555) at knot//net.irisshaders.iris.pipeline.IrisRenderingPipeline.renderShadows(IrisRenderingPipeline.java:1001) at knot//net.minecraft.class_761.handler$bae000$iris$renderTerrainShadows(class_761.java:4654) at knot//net.minecraft.class_761.method_22710(class_761.java:466) at knot//net.minecraft.class_757.method_3188(class_757.java:738) at knot//net.minecraft.class_757.method_3192(class_757.java:506) at knot//net.minecraft.class_310.method_1523(class_310.java:1361) at knot//net.minecraft.class_310.method_1514(class_310.java:947) at knot//net.minecraft.client.main.Main.main(Main.java:265) at net.fabricmc.loader.impl.game.minecraft.MinecraftGameProvider.launch(MinecraftGameProvider.java:480) at net.fabricmc.loader.impl.launch.knot.Knot.launch(Knot.java:74) at net.fabricmc.loader.impl.launch.knot.KnotClient.main(KnotClient.java:23) A detailed walkthrough of the error, its code path and all known details is as follows: --------------------------------------------------------------------------------------- -- Head -- Thread: Render thread Stacktrace: at knot//net.minecraft.class_1921.iris$getRenderTarget(class_1921.java:851) at knot//net.irisshaders.iris.layer.OuterWrappedRenderType.iris$getRenderTarget(OuterWrappedRenderType.java:88) at knot//net.irisshaders.batchedentityrendering.impl.FullyBufferedMultiBufferSource.method_22993(FullyBufferedMultiBufferSource.java:161) at knot//net.irisshaders.iris.shadows.ShadowRenderer.renderShadows(ShadowRenderer.java:555) at knot//net.irisshaders.iris.pipeline.IrisRenderingPipeline.renderShadows(IrisRenderingPipeline.java:1001) at knot//net.minecraft.class_761.handler$bae000$iris$renderTerrainShadows(class_761.java:4654) at knot//net.minecraft.class_761.method_22710(class_761.java:466) at knot//net.minecraft.class_757.method_3188(class_757.java:738) -- Uptime -- Details: JVM uptime: 184.245s Wall uptime: 134.286s High-res time: 125.917s Client ticks: 536 ticks / 26.800s Stacktrace: at knot//net.minecraft.class_310.method_1587(class_310.java:2411) at knot//net.minecraft.class_310.method_54580(class_310.java:1016) at knot//net.minecraft.class_310.method_1514(class_310.java:971) at knot//net.minecraft.client.main.Main.main(Main.java:265) at net.fabricmc.loader.impl.game.minecraft.MinecraftGameProvider.launch(MinecraftGameProvider.java:480) at net.fabricmc.loader.impl.launch.knot.Knot.launch(Knot.java:74) at net.fabricmc.loader.impl.launch.knot.KnotClient.main(KnotClient.java:23) -- Affected level -- Details: All players: 1 total; class_746{name={MINECRAFT_USERNAME}, id=124, pos=(565.5, 71.0, 376.5), mode=SURVIVAL, permission=0} Chunk stats: 729, 121 Level dimension: minecraft:overworld Level spawn location: World: (560,76,384), Section: (at 0,12,0 in 35,4,24; chunk contains blocks 560,-64,384 to 575,319,399), Region: (1,0; contains chunks 32,0 to 63,31, blocks 512,-64,0 to 1023,319,511) Level time: 605 game time, 605 day time Server brand: fabric Server type: Integrated singleplayer server Tracked entity count: 58 -- Last reload -- Details: Reload number: 1 Reload reason: initial Finished: Yes Packs: vanilla, fabric, essential, essential-container, essential-loader, fabric-api, fabric-api-base, fabric-api-lookup-api-v1, fabric-biome-api-v1, fabric-block-api-v1, fabric-block-view-api-v2, fabric-command-api-v2, fabric-content-registries-v0, fabric-convention-tags-v1, fabric-convention-tags-v2, fabric-crash-report-info-v1, fabric-data-attachment-api-v1, fabric-data-generation-api-v1, fabric-dimensions-v1, fabric-entity-events-v1, fabric-events-interaction-v0, fabric-game-rule-api-v1, fabric-item-api-v1, fabric-item-group-api-v1, fabric-key-binding-api-v1, fabric-language-kotlin, fabric-lifecycle-events-v1, fabric-loot-api-v2, fabric-loot-api-v3, fabric-message-api-v1, fabric-model-loading-api-v1, 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-rendering-fluids-v1, 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-tag-api-v1, fabric-transfer-api-v1, fabric-transitive-access-wideners-v1, fabricloader, iris, sodium, file/UniqueDark 1.20.2-1.21.x (free).zip, Essential Assets, essential -- System Details -- Details: Minecraft Version: 1.21.6 Minecraft Version ID: 1.21.6 Operating System: Windows 11 (amd64) version 10.0 Java Version: 21.0.7, Azul Systems, Inc. Java VM Version: OpenJDK 64-Bit Server VM (mixed mode, sharing), Azul Systems, Inc. Memory: 337870504 bytes (322 MiB) / 958398464 bytes (914 MiB) up to 2147483648 bytes (2048 MiB) CPUs: 12 Processor Vendor: GenuineIntel Processor Name: 11th Gen Intel(R) Core(TM) i5-11400H @ 2.70GHz Identifier: Intel64 Family 6 Model 141 Stepping 1 Microarchitecture: Tiger Lake Frequency (GHz): 2.69 Number of physical packages: 1 Number of physical CPUs: 6 Number of logical CPUs: 12 Graphics card #0 name: Intel(R) UHD Graphics Graphics card #0 vendor: Intel Corporation Graphics card #0 VRAM (MiB): 128.00 Graphics card #0 deviceId: VideoController1 Graphics card #0 versionInfo: 31.0.101.5333 Graphics card #1 name: NVIDIA GeForce RTX 2050 Graphics card #1 vendor: NVIDIA Graphics card #1 VRAM (MiB): 4096.00 Graphics card #1 deviceId: VideoController2 Graphics card #1 versionInfo: 32.0.15.7652 Memory slot #0 capacity (MiB): 8192.00 Memory slot #0 clockSpeed (GHz): 3.20 Memory slot #0 type: DDR4 Virtual memory max (MiB): 27264.05 Virtual memory used (MiB): 25768.05 Swap memory total (MiB): 19350.74 Swap memory used (MiB): 3494.84 Space in storage for jna.tmpdir (MiB): available: 84636.14, total: 460081.31 Space in storage for org.lwjgl.system.SharedLibraryExtractPath (MiB): available: 84636.14, total: 460081.31 Space in storage for io.netty.native.workdir (MiB): available: 84636.14, total: 460081.31 Space in storage for java.io.tmpdir (MiB): available: 84636.14, total: 460081.31 Space in storage for workdir (MiB): available: 84636.14, total: 460081.31 JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx2048M Fabric Mods: elementa: Elementa 708 essential: Essential 1.3.8.2 essential-container: essential-container 1.0.0 essential-loader: essential-loader 1.2.4 fabric-api: Fabric API 0.127.1+1.21.6 fabric-api-base: Fabric API Base 0.4.63+9ec45cd896 fabric-api-lookup-api-v1: Fabric API Lookup API (v1) 1.6.99+9ec45cd896 fabric-biome-api-v1: Fabric Biome API (v1) 16.0.10+fa6cb72b96 fabric-block-api-v1: Fabric Block API (v1) 1.1.2+78dbe4fb96 fabric-block-view-api-v2: Fabric BlockView API (v2) 1.0.30+d32f812d96 fabric-command-api-v2: Fabric Command API (v2) 2.2.52+b39a696a96 fabric-content-registries-v0: Fabric Content Registries (v0) 10.0.17+fa6cb72b96 fabric-convention-tags-v1: Fabric Convention Tags 2.1.37+7f945d5b96 fabric-convention-tags-v2: Fabric Convention Tags (v2) 2.15.2+d9a8963096 fabric-crash-report-info-v1: Fabric Crash Report Info (v1) 0.3.14+fa6cb72b96 fabric-data-attachment-api-v1: Fabric Data Attachment API (v1) 1.8.9+d9a8963096 fabric-data-generation-api-v1: Fabric Data Generation API (v1) 23.2.1+a12c792296 fabric-dimensions-v1: Fabric Dimensions API (v1) 4.0.18+75fa737a96 fabric-entity-events-v1: Fabric Entity Events (v1) 2.1.0+c9e4727396 fabric-events-interaction-v0: Fabric Events Interaction (v0) 4.0.22+0d4d744796 fabric-game-rule-api-v1: Fabric Game Rule API (v1) 1.0.71+9ec45cd896 fabric-item-api-v1: Fabric Item API (v1) 11.4.2+5e29f18996 fabric-item-group-api-v1: Fabric Item Group API (v1) 4.2.12+9ec45cd896 fabric-key-binding-api-v1: Fabric Key Binding API (v1) 1.0.64+9ec45cd896 fabric-lifecycle-events-v1: Fabric Lifecycle Events (v1) 2.6.2+db4dfd8596 fabric-loot-api-v2: Fabric Loot API (v2) 3.0.54+3f89f5a596 fabric-loot-api-v3: Fabric Loot API (v3) 2.0.1+f408173096 fabric-message-api-v1: Fabric Message API (v1) 6.1.0+8efa0e4996 fabric-model-loading-api-v1: Fabric Model Loading API (v1) 5.2.4+ae8be2b896 fabric-networking-api-v1: Fabric Networking API (v1) 5.0.0+d32f812d96 fabric-object-builder-api-v1: Fabric Object Builder API (v1) 21.1.6+946cf78996 fabric-particles-v1: Fabric Particles (v1) 4.1.6+c1dce21896 fabric-recipe-api-v1: Fabric Recipe API (v1) 8.1.13+39ce47f596 fabric-registry-sync-v0: Fabric Registry Sync (v0) 6.1.26+5936d6ff96 fabric-renderer-api-v1: Fabric Renderer API (v1) 7.0.1+a0cfcc8296 fabric-renderer-indigo: Fabric Renderer - Indigo 4.0.1+2516f22296 fabric-rendering-fluids-v1: Fabric Rendering Fluids (v1) 3.1.29+fa6cb72b96 fabric-rendering-v1: Fabric Rendering (v1) 12.3.0+ac3e15d196 fabric-resource-conditions-api-v1: Fabric Resource Conditions API (v1) 5.0.23+908cbc9196 fabric-resource-loader-v0: Fabric Resource Loader (v0) 3.1.10+fa6cb72b96 fabric-screen-api-v1: Fabric Screen API (v1) 2.0.50+908cbc9196 fabric-screen-handler-api-v1: Fabric Screen Handler API (v1) 1.3.135+d32f812d96 fabric-sound-api-v1: Fabric Sound API (v1) 1.0.41+d32f812d96 fabric-tag-api-v1: Fabric Tag API (v1) 1.2.0+75110b0496 fabric-transfer-api-v1: Fabric Transfer API (v1) 6.0.4+074c84ee96 fabric-transitive-access-wideners-v1: Fabric Transitive Access Wideners (v1) 6.4.0+ac3e15d196 fabric-language-kotlin: Fabric Language Kotlin 1.10.19+kotlin.1.9.23 fabricloader: Fabric Loader 0.16.14 mixinextras: MixinExtras 0.4.1 iris: Iris 1.9.0+mc1.21.6 io_github_douira_glsl-transformer: glsl-transformer 2.0.1 org_anarres_jcpp: jcpp 1.4.14 org_antlr_antlr4-runtime: antlr4-runtime 4.13.1 java: OpenJDK 64-Bit Server VM 21 minecraft: Minecraft 1.21.6 org_jetbrains_annotations: annotations 13.0 org_jetbrains_kotlin_kotlin-reflect: kotlin-reflect 1.9.23 org_jetbrains_kotlin_kotlin-stdlib: kotlin-stdlib 1.9.23 org_jetbrains_kotlin_kotlin-stdlib-jdk7: kotlin-stdlib-jdk7 1.9.23 org_jetbrains_kotlin_kotlin-stdlib-jdk8: kotlin-stdlib-jdk8 1.9.23 org_jetbrains_kotlinx_atomicfu-jvm: atomicfu-jvm 0.23.2 org_jetbrains_kotlinx_kotlinx-coroutines-core-jvm: kotlinx-coroutines-core-jvm 1.8.0 org_jetbrains_kotlinx_kotlinx-coroutines-jdk8: kotlinx-coroutines-jdk8 1.8.0 org_jetbrains_kotlinx_kotlinx-datetime-jvm: kotlinx-datetime-jvm 0.5.0 org_jetbrains_kotlinx_kotlinx-serialization-cbor-jvm: kotlinx-serialization-cbor-jvm 1.6.3 org_jetbrains_kotlinx_kotlinx-serialization-core-jvm: kotlinx-serialization-core-jvm 1.6.3 org_jetbrains_kotlinx_kotlinx-serialization-json-jvm: kotlinx-serialization-json-jvm 1.6.3 sodium: Sodium 0.6.13+mc1.21.6 universalcraft: UniversalCraft 412 vigilance: Vigilance 306 Loaded Shaderpack: ComplementaryReimagined_r5.5.1.zip Profile: LOW (+0 options changed by user) Launched Version: 1.21.6 Launcher name: theseus Backend library: LWJGL version 3.3.3-snapshot Backend API: NVIDIA GeForce RTX 2050/PCIe/SSE2 GL version 3.2.0 NVIDIA 576.52, NVIDIA Corporation Window size: 1920x1080 GFLW Platform: win32 Render Extensions: GL_ARB_buffer_storage, GL_KHR_debug, GL_ARB_vertex_attrib_binding, GL_ARB_direct_state_access GL debug messages: Is Modded: Definitely; Client brand changed to 'fabric'; Server brand changed to 'fabric' Universe: 400921fb54442d18 Type: Integrated Server (map_client.txt) Graphics mode: fancy Render Distance: 10/10 chunks Resource Packs: vanilla, fabric, essential (incompatible), essential-container, essential-loader, fabric-api, fabric-api-base, fabric-api-lookup-api-v1, fabric-biome-api-v1, fabric-block-api-v1, fabric-block-view-api-v2, fabric-command-api-v2, fabric-content-registries-v0, fabric-convention-tags-v1, fabric-convention-tags-v2, fabric-crash-report-info-v1, fabric-data-attachment-api-v1, fabric-data-generation-api-v1, fabric-dimensions-v1, fabric-entity-events-v1, fabric-events-interaction-v0, fabric-game-rule-api-v1, fabric-item-api-v1, fabric-item-group-api-v1, fabric-key-binding-api-v1, fabric-language-kotlin, fabric-lifecycle-events-v1, fabric-loot-api-v2, fabric-loot-api-v3, fabric-message-api-v1, fabric-model-loading-api-v1, 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-rendering-fluids-v1, 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-tag-api-v1, fabric-transfer-api-v1, fabric-transitive-access-wideners-v1, fabricloader, iris, sodium, file/UniqueDark 1.20.2-1.21.x (free).zip Current Language: en_us Locale: en_GB System encoding: Cp1252 File encoding: UTF-8 CPU: 12x 11th Gen Intel(R) Core(TM) i5-11400H @ 2.70GHz Server Running: true Player Count: 1 / 8; [class_3222['{MINECRAFT_USERNAME}'/124, l='ServerLevel[New World]', x=565.50, y=71.00, z=376.50]] Active Data Packs: vanilla, fabric, fabric-convention-tags-v2 Available Data Packs: fabric, fabric-convention-tags-v2, minecart_improvements, redstone_experiments, trade_rebalance, vanilla Enabled Feature Flags: minecraft:vanilla World Generation: Stable World Seed: 7549698227406356560 Suppressed Exceptions: ~~NONE~~