---- Minecraft Crash Report ---- // Hi. I'm Minecraft, and I'm a crashaholic. Time: 2026-09-29 16:26:46 Description: Exception chunk generation/loading java.lang.NullPointerException: Cannot invoke "net.minecraft.world.level.block.state.BlockState.isAir()" because "block" is null at net.minecraft.world.level.levelgen.FlatLevelSource.getBaseColumn(FlatLevelSource.java:103) at net.minecraft.world.level.chunk.ChunkGenerator.getFirstFreeHeight(ChunkGenerator.java:640) at net.minecraft.world.level.levelgen.structure.pools.JigsawPlacement$Placer.tryPlacingChildren(JigsawPlacement.java:188) at net.minecraft.world.level.levelgen.structure.pools.JigsawPlacement.addPieces(JigsawPlacement.java:379) at net.minecraft.world.level.levelgen.structure.pools.JigsawPlacement.lambda$addPieces$2(JigsawPlacement.java:343) at net.minecraft.world.level.levelgen.structure.Structure$GenerationStub.lambda$getPiecesBuilder$0(Structure.java:197) at com.mojang.datafixers.util.Either$Left.map(Either.java:38) at net.minecraft.world.level.levelgen.structure.Structure$GenerationStub.getPiecesBuilder(Structure.java:195) at net.minecraft.world.level.levelgen.structure.Structure.generate(Structure.java:209) at net.minecraft.world.level.chunk.ChunkGenerator.tryGenerateStructure(ChunkGenerator.java:575) at net.minecraft.world.level.chunk.ChunkGenerator.lambda$createStructuresForSets$0(ChunkGenerator.java:555) at java.base/java.lang.Iterable.forEach(Iterable.java:75) at net.minecraft.world.level.chunk.ChunkGenerator.createStructuresForSets(ChunkGenerator.java:521) at net.minecraft.world.level.chunk.ChunkGenerator.lambda$createStructures$1(ChunkGenerator.java:508) at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1789) at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.exec(CompletableFuture.java:1781) at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:511) at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1450) at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:2019) at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:187) Suppressed: java.lang.IllegalStateException: Requested chunk unavailable during world generation at net.minecraft.server.level.WorldGenRegion.getChunk(WorldGenRegion.java:149) at net.minecraft.world.level.LevelReader.getChunk(LevelReader.java:156) at net.minecraft.server.level.WorldGenRegion.getChunk(WorldGenRegion.java:133) at net.minecraft.world.level.chunk.ChunkGenerator.createReferences(ChunkGenerator.java:603) at net.minecraft.world.level.chunk.status.ChunkStatusTasks.generateStructureReferences(ChunkStatusTasks.java:70) at net.minecraft.world.level.chunk.status.ChunkStep.apply(ChunkStep.java:36) at net.minecraft.server.level.ChunkMap.applyStep(ChunkMap.java:665) at net.minecraft.server.level.GenerationChunkHolder.applyStep(GenerationChunkHolder.java:87) at net.minecraft.server.level.ChunkGenerationTask.scheduleChunkInLayer(ChunkGenerationTask.java:144) at net.minecraft.server.level.ChunkGenerationTask.scheduleLayer(ChunkGenerationTask.java:121) at net.minecraft.server.level.ChunkGenerationTask.scheduleNextLayer(ChunkGenerationTask.java:72) at net.minecraft.server.level.ChunkGenerationTask.runUntilWait(ChunkGenerationTask.java:57) at net.minecraft.server.level.ChunkMap.lambda$runGenerationTask$0(ChunkMap.java:691) at net.minecraft.server.level.ChunkTaskDispatcher.lambda$scheduleForExecution$1(ChunkTaskDispatcher.java:91) at net.minecraft.util.thread.TaskScheduler.lambda$scheduleWithResult$0(TaskScheduler.java:21) at net.minecraft.util.Util.runNamed(Util.java:348) at net.minecraft.util.thread.AbstractConsecutiveExecutor.pollTask(AbstractConsecutiveExecutor.java:50) at net.minecraft.util.thread.AbstractConsecutiveExecutor.run(AbstractConsecutiveExecutor.java:60) at java.base/java.util.concurrent.ForkJoinTask$RunnableExecuteAction.compute(ForkJoinTask.java:1750) at java.base/java.util.concurrent.ForkJoinTask$RunnableExecuteAction.compute(ForkJoinTask.java:1742) at java.base/java.util.concurrent.ForkJoinTask$InterruptibleTask.exec(ForkJoinTask.java:1659) ... 4 more A detailed walkthrough of the error, its code path and all known details is as follows: --------------------------------------------------------------------------------------- -- Head -- Thread: Render thread Stacktrace: at net.minecraft.world.level.levelgen.FlatLevelSource.getBaseColumn(FlatLevelSource.java:103) at net.minecraft.world.level.chunk.ChunkGenerator.getFirstFreeHeight(ChunkGenerator.java:640) at net.minecraft.world.level.levelgen.structure.pools.JigsawPlacement$Placer.tryPlacingChildren(JigsawPlacement.java:188) at net.minecraft.world.level.levelgen.structure.pools.JigsawPlacement.addPieces(JigsawPlacement.java:379) at net.minecraft.world.level.levelgen.structure.pools.JigsawPlacement.lambda$addPieces$2(JigsawPlacement.java:343) at net.minecraft.world.level.levelgen.structure.Structure$GenerationStub.lambda$getPiecesBuilder$0(Structure.java:197) at com.mojang.datafixers.util.Either$Left.map(Either.java:38) at net.minecraft.world.level.levelgen.structure.Structure$GenerationStub.getPiecesBuilder(Structure.java:195) at net.minecraft.world.level.levelgen.structure.Structure.generate(Structure.java:209) at net.minecraft.world.level.chunk.ChunkGenerator.tryGenerateStructure(ChunkGenerator.java:575) -- Mouse -- Details: Mouse location: Scaled: (218.750000, 234.941003). Absolute: (875.000000, 937.000000) Screen size: Scaled: (480, 255). Absolute: (1920, 1017). Scale factor of 4 Button: 1 Stacktrace: at net.minecraft.client.MouseHandler.onButton(MouseHandler.java:126) at com.mojang.blaze3d.platform.SDLEventHandler.lambda$handleMouseButtonEvent$0(SDLEventHandler.java:108) at net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:173) at net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) at net.minecraft.util.thread.BlockableEventLoop.execute(BlockableEventLoop.java:114) at com.mojang.blaze3d.platform.SDLEventHandler.handleMouseButtonEvent(SDLEventHandler.java:108) at com.mojang.blaze3d.platform.SDLEventHandler.pollEvents(SDLEventHandler.java:45) at com.mojang.blaze3d.systems.RenderSystem.pollEvents(RenderSystem.java:169) at net.minecraft.client.Minecraft.run(Minecraft.java:965) at net.minecraft.client.main.Main.main(Main.java:292) -- Uptime -- Details: JVM uptime: 82.501s Wall uptime: 72.372s High-res time: 71.970s Client ticks: 1243 ticks / 62.150s -- Window -- Details: Error section: Post render -- Last reload -- Details: Reload number: 1 Reload reason: initial Finished: Yes Packs: vanilla, vanilla -- System Details -- Details: Minecraft Version: 26.4 Snapshot 2 Minecraft Version ID: 26.4-snapshot-2 Operating System: Windows 10 (amd64) version 10.0 Java Version: 25.0.1, Microsoft Java VM Version: OpenJDK 64-Bit Server VM (mixed mode), Microsoft Memory: 0 bytes (0 MiB) / 2424307712 bytes (2312 MiB) up to 4294967296 bytes (4096 MiB) Memory (heap): init: 2048MiB, used: 2312MiB, committed: 2312MiB, max: 4096MiB Memory (non-heap): init: 007MiB, used: 202MiB, committed: 205MiB, max: 000MiB CPUs: 8 Processor Vendor: GenuineIntel Processor Name: Intel(R) Core(TM) i3-10100 CPU @ 3.60GHz Identifier: Intel64 Family 6 Model 165 Stepping 3 Microarchitecture: Comet Lake Frequency (GHz): 3.60 Number of physical packages: 1 Number of physical CPUs: 4 Number of logical CPUs: 8 Graphics card #0 name: Intel(R) UHD Graphics 630 Graphics card #0 vendor: Intel Corporation Graphics card #0 VRAM (MiB): 1024.00 Graphics card #0 deviceId: VideoController1 Graphics card #0 versionInfo: 27.20.100.9127 Graphics card #1 name: NVIDIA GeForce GTX 1060 6GB Graphics card #1 vendor: NVIDIA Graphics card #1 VRAM (MiB): 6144.00 Graphics card #1 deviceId: VideoController2 Graphics card #1 versionInfo: 32.0.15.6094 Memory slot #0 capacity (MiB): 4096.00 Memory slot #0 clockSpeed (GHz): 2.67 Memory slot #0 type: DDR4 Memory slot #1 capacity (MiB): 4096.00 Memory slot #1 clockSpeed (GHz): 2.67 Memory slot #1 type: DDR4 Virtual memory max (MiB): 31116.64 Virtual memory used (MiB): 17437.42 Swap memory total (MiB): 23058.62 Swap memory used (MiB): 1623.97 Space in storage for jna.tmpdir (MiB): available: 99053.49, total: 228271.20 Space in storage for org.lwjgl.system.SharedLibraryExtractPath (MiB): available: 99053.49, total: 228271.20 Space in storage for io.netty.native.workdir (MiB): available: 99053.49, total: 228271.20 Space in storage for java.io.tmpdir (MiB): available: 99053.49, total: 228271.20 Space in storage for workdir (MiB): available: 99053.49, total: 228271.20 Operating System Version: Microsoft Windows 10 (Home) build 19045 Process Elevated: false Process Loads: Uptime: 79s, user: 58s (72.42%), kernel: 7s (8.81%), total: 65s (81.23%) Process Virtual Size (MiB): 2845.55 Process Resident Size (MiB): 282.18 JVM Flags: 9 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss1M -XX:StackShadowPages=32 -Xms2G -Xmx4G -XX:+UseCompactObjectHeaders -XX:+AlwaysPreTouch -XX:+UseStringDeduplication -XX:+UseZGC Debug Flags: 0 total; Launched Version: 26.4-snapshot-2 Launcher name: minecraft-launcher Backend library: LWJGL version 3.4.3+4 Window size: 1920x1017 Surface Info: FIFO, 1920 x 1017 SDL Platform: Windows Graphics Device: NVIDIA GeForce GTX 1060 6GB Graphics Backend: Vulkan Graphics Vendor: NVIDIA Graphics Drivers: 1.3.280 NVIDIA 560.94 Graphics Device Extensions: VK_EXT_calibrated_timestamps (D), VK_KHR_synchronization2 (D), VK_EXT_multi_draw (D), VK_AMD_buffer_marker (D), VK_EXT_vertex_attribute_divisor (D), VK_KHR_win32_surface (I), VK_KHR_swapchain (D), VK_KHR_surface (I), VK_EXT_debug_utils (I) Graphics Device Type: DISCRETE Graphics Device Features: DeviceFeatures[wireframeFillMode=true, shaderDrawParameters=true, multiDrawDirectInterleaved=true, multiDrawDirectSeparate=false, multiDrawIndirect=true, drawIndirect=true, nonZeroFirstInstance=true, persistentMapping=true] GL debug messages: Is Modded: Probably not. Client jar signature and brand is untouched Universe: 400921fb54442d18 Type: Client Transparency: regular Render Distance: 5/5 chunks Narrator config: OFF Narrator status: true Resource Packs: vanilla Sound Cache: 48816 bytes in 1 buffers Current Language: en_us Locale: en_US System encoding: Cp1252 File encoding: UTF-8 CPU: 8x Intel(R) Core(TM) i3-10100 CPU @ 3.60GHz Server Running: true All players: 0 / 8; Active Data Packs: vanilla Available Data Packs: minecart_improvements, redstone_experiments, trade_rebalance, vanilla Enabled Feature Flags: minecraft:vanilla World Generation: Stable World Seed: -3535067740263562967 Suppressed Exceptions: ~~NONE~~ Type: Integrated Server Is Modded: Probably not. Client jar signature and brand is untouched; Server jar signature and brand is untouched Launched Version: 26.4-snapshot-2