---- Minecraft Crash Report ---- // On the bright side, I bought you a teddy bear! Time: 2026-09-24 10:48:34 Description: Exception on worker thread java.lang.ArrayIndexOutOfBoundsException: Index -1 out of bounds for length 16 at net.minecraft.world.level.biome.NoiseBiomeChunk.getSection(NoiseBiomeChunk.java:62) at net.minecraft.world.level.chunk.storage.SerializableChunkData.write(SerializableChunkData.java:451) 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$WorkQueue.topLevelExec(ForkJoinPool.java:1450) at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:2019) at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:187) Suppressed: java.lang.ArrayIndexOutOfBoundsException: Index -1 out of bounds for length 16 ... 8 more A detailed walkthrough of the error, its code path and all known details is as follows: --------------------------------------------------------------------------------------- -- Head -- Thread: Render thread Stacktrace: at net.minecraft.world.level.biome.NoiseBiomeChunk.getSection(NoiseBiomeChunk.java:62) at net.minecraft.world.level.chunk.storage.SerializableChunkData.write(SerializableChunkData.java:451) at java.base/java.util.concurrent.CompletableFuture$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) -- ThreadInfo -- Details: Name: IO-Worker-39 Stacktrace: at net.minecraft.util.Util.onThreadException(Util.java:310) at java.base/java.lang.Thread.dispatchUncaughtException(Thread.java:2556) -- Uptime -- Details: JVM uptime: 4664.676s Wall uptime: 4661.255s High-res time: 4661.120s Client ticks: 93089 ticks / 4654.450s -- Window -- Details: Error section: Pre render -- Affected level -- Details: Players in level: 1 total; LocalPlayer{name=clamlol, id=3674, pos=[-28.55,97.69,-25.40], mode=CREATIVE, permission=owner} Chunk stats: 5041, 3725 Level dimension: minecraft:the_end Level time: 678891 game time, 120647 day time Level spawn location: World: (0,64,0), Section: (at 0,0,0 in 0,4,0; chunk contains blocks 0,0,0 to 15,255,15), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511) Server brand: vanilla Server type: Integrated singleplayer server Tracked entity count: 93 Client weather: Raining: false, thundering: false -- Last reload -- Details: Reload number: 1 Reload reason: initial Finished: Yes Packs: vanilla, vanilla, file/Default-Dark-Mode-1.21.6-0-000000-1-0-000000-AAAAAA-(2025.6.0).zip -- System Details -- Details: Minecraft Version: 26.4 Snapshot 1 Minecraft Version ID: 26.4-snapshot-1 Operating System: Mac OS X (aarch64) version 27.0 Java Version: 25.0.1, Microsoft Java VM Version: OpenJDK 64-Bit Server VM (mixed mode), Microsoft Memory: 1645837728 bytes (1569 MiB) / 3690987520 bytes (3520 MiB) up to 12884901888 bytes (12288 MiB) Memory (heap): init: 2048MiB, used: 1897MiB, committed: 3520MiB, max: 12288MiB Memory (non-heap): init: 007MiB, used: 229MiB, committed: 263MiB, max: 000MiB CPUs: 16 Processor Vendor: Apple Inc. Processor Name: Apple M3 Max Identifier: Apple Inc. Family 0x8765edea Model 0 Stepping 0 Microarchitecture: ARM64 SoC: Everest + Sawtooth Frequency (GHz): 4.06 Number of physical packages: 1 Number of physical CPUs: 16 Number of logical CPUs: 16 Graphics card #0 name: Apple M3 Max Graphics card #0 vendor: Apple (0x106b) Graphics card #0 VRAM (MiB): 0.00 Graphics card #0 deviceId: unknown Graphics card #0 versionInfo: unknown Memory slot #0 capacity (MiB): 0.00 Memory slot #0 clockSpeed (GHz): 0.00 Memory slot #0 type: unknown Virtual memory max (MiB): 49152.00 Virtual memory used (MiB): 27646.31 Swap memory total (MiB): 0.00 Swap memory used (MiB): 0.00 Space in storage for jna.tmpdir (MiB): available: 701887.56, total: 1902788.38 Space in storage for org.lwjgl.system.SharedLibraryExtractPath (MiB): available: 701887.56, total: 1902788.38 Space in storage for io.netty.native.workdir (MiB): available: 701887.56, total: 1902788.38 Space in storage for java.io.tmpdir (MiB): available: 701887.56, total: 1902788.38 Space in storage for workdir (MiB): available: 701887.56, total: 1902788.38 Operating System Version: Apple macOS 27.0 build 26A428 Process Elevated: false Process Loads: Uptime: 4664s, user: 1168s (25.05%), kernel: 351s (7.53%), total: 1519s (32.58%) Process Virtual Size (MiB): 493255.00 Process Resident Size (MiB): 5633.61 JVM Flags: 12 total; -XX:StackShadowPages=32 -Xms2G -Xmx12G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M -XX:+ParallelRefProcEnabled -XX:+AlwaysPreTouch -XX:+UseStringDeduplication Debug Flags: 0 total; Launched Version: 26.4-snapshot-1 Launcher name: minecraft-launcher Backend library: LWJGL version 3.4.3+4 Window size: 3456x2168 Surface Info: FIFO, 3456 x 2168 SDL Platform: macOS Graphics Device: Apple M3 Max Graphics Backend: Vulkan Graphics Vendor: APPLE Graphics Drivers: 1.2.350 MoltenVK 1.4.2 Graphics Device Extensions: VK_KHR_portability_subset (D), VK_EXT_calibrated_timestamps (D), VK_KHR_synchronization2 (D), VK_EXT_metal_surface (I), VK_EXT_vertex_attribute_divisor (D), VK_KHR_swapchain (D), VK_KHR_surface (I), VK_EXT_debug_utils (I) Graphics Device Type: INTEGRATED Graphics Device Features: DeviceFeatures[wireframeFillMode=true, shaderDrawParameters=true, multiDrawDirectInterleaved=false, 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: shader Render Distance: 32/32 chunks Narrator config: OFF Narrator status: true Resource Packs: vanilla, file/Default-Dark-Mode-1.21.6-0-000000-1-0-000000-AAAAAA-(2025.6.0).zip (incompatible) Sound Cache: 12075916 bytes in 75 buffers Current Language: en_us Locale: en_US System encoding: UTF-8 File encoding: UTF-8 CPU: 16x Apple M3 Max Server Running: true All players: 1 / 8; ServerPlayer{name=clamlol, id=3674, pos=[-28.55,97.69,-25.40], mode=CREATIVE, permission=owner, level=ServerLevel[25w44a], debug=vanilla(0 mods)} Active Data Packs: vanilla Available Data Packs: minecart_improvements, redstone_experiments, trade_rebalance, vanilla Enabled Feature Flags: minecraft:vanilla World Generation: Stable World Seed: 6014601110868630801 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-1