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[crash] Intermittent ExceptionInInitializerError on save Startup (RapierPhysicsPipeline.init) #1237

@weixunchen29-sudo

Description

@weixunchen29-sudo

Context

SUMMARY

The server crashes intermittently on startup with ExceptionInInitializerError: null originating from RapierPhysicsPipeline.init. The crash is non-deterministic — relaunching the server sometimes allows it to start normally. This has occurred 3 times within 2 days (2026-06-18 and 2026-06-20), suggesting a race condition in the Rapier physics engine initialization. Intermittent — occurs roughly 3 out of every 5 startup attempts

ENVIRONMENT

Sable | 2.0.3
Minecraft | 1.21.1
NeoForge | 21.1.233

MOD LIST

0Pack2Reload [1.21.1-1.0.1] (0Pack2Reload-NeoForge-1.21.1-1.0.1.jar)
3d-Skin-Layers [1.11.2] (skinlayers3d-neoforge-1.11.2-mc1.21.1.jar)
Addons Lib [1.21.1-1.10] (addonslib-neoforge-1.21.1-1.10.jar)
Advancement Plaques [1.6.8] (AdvancementPlaques-1.21.1-neoforge-1.6.8.jar)
AeronauticsCompat [1.1.2] (aeronauticscompat-1.1.2.jar)
All The Leaks [1.1.9+1.21.1-neoforge] (alltheleaks-1.1.9+1.21.1-neoforge.jar)
Amendments [1.21-2.0.15] (amendments-1.21-2.0.15-neoforge.jar)
Another Furniture [4.0.2] (another_furniture-neoforge-4.0.2.jar)
AppleSkin [3.0.9+mc1.21] (appleskin-neoforge-mc1.21-3.0.9.jar)
Aquaculture 2 [2.7.21] (Aquaculture-1.21.1-2.7.21.jar)
Aquaculture Delight [1.1.0] (aquaculturedelight-1.2.0-neoforge-1.21.1.jar)
Architectury [13.0.8] (architectury-13.0.8-neoforge.jar)
Backpack Plus [1.21.1-1.0.0] (backpackplus-neoforge-1.21.1-1.0.0.jar)
Better Archeology [1.21.1-1.3.4] (betterarcheology-neoforge-1.21.1-1.3.4.jar)
Better Combat [2.3.2+1.21.1] (bettercombat-neoforge-2.3.2+1.21.1.jar)
BetterDays [3.3.6.3] (betterdays-1.21.1-3.3.6.3-NEOFORGE.jar)
BetterF3 [11.0.3] (BetterF3-11.0.3-NeoForge-1.21.1.jar)
BiomeSpy [1.3.3] (biomespy-neoforge-1.21.1-1.3.3.jar)
Brewin' And Chewin' [4.4.2] (BrewinAndChewin-neoforge-4.4.2+1.21.1.jar)
Butchercraft [2.6.5] (butchercraft-2.6.5.jar)
CBC Advanced Technology [0.1.4c-1.21.1] (cbc_at_Neoforge_1.21.1_0.1.4c.jar)
CBC: Compact Mount [1.2.2] (cbc_compact_mount-1.2.2.jar)
Caelus API [7.0.1+1.21.1] (caelus-neoforge-7.0.1+1.21.1.jar)
Carry On [2.2.4] (carryon-neoforge-1.21.1-2.2.4.4.jar)
Cataclysm & BetterCombat - Compatibility [1.0.2] (cataclysm_compat_1.21.1-1.0.2.jar)
Chefs Delight [1.0.5] (chefsdelight-1.0.5-neoforge-1.21.1.jar)
Chunky [1.4.23] (Chunky-NeoForge-1.4.23.jar)
Cinematic Cataclysm [1.0.1] (cinematiccataclysm-1.0.1-1.21.1.jar)
Civilis Technology [1.0.2] (civilis_technology-1.0.2-universal-1.21.1.jar)
Civillis [2.0.0-release] (civillis-neoforge-2.0.0-release+mc1.21.1.jar)
ClientSort [2.2.2+1.21.1] (clientsort-neoforge-2.2.2+1.21.1.jar)
Cloth Config v15 API [15.0.140] (cloth-config-15.0.140-neoforge.jar)
Clumps [19.0.0.1] (Clumps-neoforge-1.21.1-19.0.0.1.jar)
Cluttered [3.0.3-1.21.1] (cluttered-[NeoForge]-3.0.3-1.21.1.jar)
Colorwheel [1.2.9+mc1.21.1] (colorwheel-neoforge-1.2.9+mc1.21.1.jar)
Colorwheel Patcher [1.0.5+mc1.21.1] (colorwheel_patcher-neoforge-1.0.5+mc1.21.1.jar)
Construction Wand KOTS [2.16.8] (constructionwand-kots-1.21.1-2.16.8.jar)
Controlling [19.0.5] (Controlling-neoforge-1.21.1-19.0.5.jar)
Crate Delight [25.09.22-1.21-neoforge] (cratedelight-25.09.22-1.21-neoforge.jar)
CraterLib [3.1.2] (CraterLib-Neoforge-1.21-3.1.2.jar)
Create [6.0.10] (create-1.21.1-6.0.10.jar)
Create Aeronautics [1.3.0] (create-aeronautics-bundled-1.21.1-1.3.0.jar)
Create Aeronautics Lift Fix [1.0.0] (create-aeronautics-lift-patch-1.1.0.jar)
Create Aeronautics: Toolgun [0.2.2] (create_aeronautics_toolgun-0.2.2.jar)
Create Big Cannons [5.11.3] (createbigcannons-5.11.3+mc.1.21.1.jar)
Create Bits 'n' Bobs [0.0.44] (bits_n_bobs-0.0.44.jar)
Create Crafts & Additions [1.6.0] (createaddition-1.6.0.jar)
Create Deco [2.1.3] (createdeco-2.1.3.jar)
Create Diesel Generators [1.21.1-1.3.13] (createdieselgenerators-1.21.1-1.3.13.jar)
Create FluidLogistics [1.0.9] (fluidlogistics-1.0.9.jar)
Create Jetpack [5.1.2] (create_jetpack-forge-5.1.2.jar)
Create Propulsion: Simulated [1.1.4] (createpropulsion-1.1.4.jar)
Create Railways Navigator [1.21.1-beta-0.9.1-C6] (createrailwaysnavigator-neoforge-1.21.1-beta-0.9.1-C6.jar)
Create Tracks+ [1.0.5] (tracks_plus-1.0.5.jar)
Create: Additional Logistics [1.4.5] (createadditionallogistics-1.21.1-1.4.5.jar)
Create: Aeroworks [1.2.11] (aeroworks-1.2.11.jar)
Create: Bells & Whistles [0.4.7-1.21.1] (bellsandwhistles-0.4.7-1.21.1.jar)
Create: Blocks & Bogies [1.0.7] (create_bb-1.0.7-1.21.1-Neoforge.jar)
Create: Central Kitchen [2.5.0] (create-central-kitchen-2.5.0.jar)
Create: Connected [1.2.2-mc1.21.1] (create_connected-1.2.2-mc1.21.1.jar)
Create: Copper and Zinc [1.6.0] (create_copper_and_zinc-2.0.0-neoforge-1.21.1.jar)
Create: Copycats+ [3.0.4+mc.1.21.1-neoforge] (copycats-3.0.4+mc.1.21.1-neoforge.jar)
Create: Dragons Plus [1.11.2b] (CreateDragonsPlus-1.11.2b.jar)
Create: Enchantment Industry [2.4.2] (create-enchantment-industry-2.4.2.jar)
Create: Gears and Tavern [1.1.6] (creategearsandtavern-1.1.6.jar)
Create: Interiors [0.6.1] (interiors-1.21.1-neoforge-0.6.1.jar)
Create: Numismatics [1.0.20+neoforge-mc1.21.1] (CreateNumismatics-1.0.20+neoforge-mc1.21.1.jar)
Create: Ornithopter Glider [1.2.0-1.21.1] (createornithopterglider-1.2.0-1.21.1.jar)
Create: Pattern Schematics [2.0.10] (create_pattern_schematics-2.0.10.jar)
Create: Power Grid [0.5.5.1] (powergrid-mc1.21.1-0.5.5.1.jar)
Create: Power Loader [2.0.5-mc1.21.1] (create_power_loader-2.0.5-mc1.21.1.jar)
Create: Radars [0.4.4-10] (create_radar-0.4.4-10+mc1.21.1.jar)
Create: Smart Bounds [1.0.0] (smart_bounds-1.0.0.jar)
Create: Steam 'n' Rails 1.21.1 [0.2.1+neoforge-mc1.21.1] (railways-0.2.1+neoforge-mc1.21.1.jar)
Create: Threaded Trains [1.0.0] (createthreadedtrains-neoforge-1.21.1-1.0.0.jar)
Create: Tweaked Controllers [1.20.1-1.2.7] (create_tweaked_controllers-1.21.1-1.2.7.jar)
Create: Ultimate Factory [1.9.0] (create_ultimate_factory-2.2.4-neoforge-1.21.1.jar)
Create: Vibrant Vaults [0.3.2] (create_vibrant_vaults-0.3.2.jar)
CreateBetterFps [1.1.4] (createbetterfps-1.21.1-1.1.4.jar)
Curios API [9.5.1+1.21.1] (curios-neoforge-9.5.1+1.21.1.jar)
Deep Aether [1.21.1-1.1.5.1] (deep_aether-1.21.1-1.1.5.1.jar)
Design n' Decor [2.2b] (Design-n-Decor-1.21.1-2.2b.jar)
Distant Horizons [3.1.0-b] (DistantHorizons-3.1.0-b-1.21.1-fabric-neoforge.jar)
DragonLib [1.21.1-beta-3.0.28] (dragonlib-neoforge-1.21.1-beta-3.0.28.jar)
Drive By Wire [0.2.9] (drivebywire-0.2.9.jar)
Eating Animation [6.0.1] (eatinganimation-1.21.0-6.0.1.jar)
Elytra Slot [9.0.2+1.21.1] (elytraslot-neoforge-9.0.2+1.21.1.jar)
End Remastered [6.0.2] (endrem-neoforge-1.21.X-6.0.2.jar)
End's Delight [2.6+neoforge.1.21.1] (ends_delight-2.6+neoforge.1.21.1.jar)
Entity Model Features [3.2.4] (entity_model_features-3.2.4-1.21-neoforge.jar)
Entity Texture Features [7.1] (entity_texture_features_1.21-neoforge-7.1.jar)
EntityCulling [1.10.4] (entityculling-neoforge-1.10.4-mc1.21.1.jar)
Epic Knights: Shields, Armor and Weapons [10.12] (epic-knights-1.21.1-neoforge-10.12.jar)
Epic Terrain Compatible [1.0.3] (epic-terrain_compatible-1.0.3.jar)
Exposure [1.9.18] (exposure-neoforge-1.21.1-1.9.18.jar)
Exposure Polaroid [1.1.5] (exposure_polaroid-neoforge-1.21.1-1.1.5.jar)
Exposure: Expanded [1.0.1] (exposure_expanded-neoforge-1.0.1.jar)
FDLib [1.0.9] (fdlib-1.0.9-1.21.1.jar)
FTB Library [2101.1.32] (ftb-library-neoforge-2101.1.32.jar)
FTB Quests [2101.1.27] (ftb-quests-neoforge-2101.1.27.jar)
FTB Teams [2101.1.10] (ftb-teams-neoforge-2101.1.10.jar)
FTB Ultimine [2101.1.15] (ftb-ultimine-neoforge-2101.1.15.jar)
Farmer's Delight [1.3.2] (FarmersDelight-1.21.1-1.3.2.jar)
FarmersStructures [1.0.6] (FarmersStructures-1.0.6-1.21.1_neoforge.jar)
Ferrite Core [7.0.3] (ferritecore-7.0.3-neoforge.jar)
Field Guide [1.11.2] (fieldguide-neoforge-1.21.1-1.11.2.jar)
Flerovium [1.0.18] (flerovium-neoforge-1.21.1-1.0.18-all.jar)
Forgematica [0.4.1+mc1.21.1] (forgematica-0.4.1+mc1.21.1.jar)
Fragmentum [2.2.4] (fragmentum-neoforge-1.21.1-2.2.4.jar)
Fzzy Config [0.7.6+1.21+neoforge] (fzzy_config-0.7.6+1.21+neoforge.jar)
GPUTape [1.0.2] (GPUTape-1.20.6-1.21x-1.0.3.jar)
GeckoLib 4 [4.8.4] (geckolib-neoforge-1.21.1-4.8.4.jar)
Ghosts [1.3.3] (ghosts-neoforge-1.21.1-1.3.3.jar)
Gnetum [3.3.4] (gnetum-3.3.4.jar)
Gravestone Mod [1.21.1-1.0.37] (gravestone-neoforge-1.21.1-1.0.37.jar)
GroovyModLoader [6.0.2] (gml-6.0.2.jar)
Happy Ghasts Boost [1.0.1] (happy_ghasts_boost-merged-1.21.1-1.0.1.jar)
HoldMyItems [2.0] (holdmyitemsnf-1.21.1v2.1.jar)
IMBlocker [5.5.4] (IMBlocker-5.5.4-neoforge+1.20.6-1.21.8.jar)
Iceberg [1.3.2] (Iceberg-1.21.1-neoforge-1.3.2.jar)
ImmediatelyFast [1.6.10+1.21.1] (ImmediatelyFast-NeoForge-1.6.10+1.21.1.jar)
Immersive Engineering [12.4.2-194] (ImmersiveEngineering-1.21.1-12.4.2-194.jar)
Immersive Melodies [0.6.4+1.21.1] (immersive_melodies-neoforge-0.6.4+1.21.1.jar)
Immersive Overlays [1.7.2+1.21.1] (immersiveoverlays-1.7.2+1.21.1-neoforge.jar)
Immersive Paintings [0.7.8] (immersive_paintings-neoforge-1.21.1-0.7.8.jar)
Integrated API [1.7.3+1.21.1-neoforge] (integrated_api-1.7.3+1.21.1-neoforge.jar)
Integrated Dungeons and Structures [1.13.7+1.21.1-neoforge] (idas-1.13.7+1.21.1-neoforge.jar)
Integrated Stronghold [1.1.4+1.21.1-neoforge] (integrated_stronghold-1.1.4+1.21.1-neoforge.jar)
Integrated Villages [1.3.3+1.21.1-neoforge] (integrated_villages-1.3.3+1.21.1-neoforge.jar)
Iris [1.8.14-beta.1+mc1.21.1] (iris-neoforge-1.8.14-beta.1+mc1.21.1.jar)
Iris Veil Compat [0.1.0] (irisveil-0.1.0.jar)
Item Descriptions [${version}] (item_descriptions-2.8.0+1.21.1-neoforge.jar)
Items Displayed [2.0.10] (ItemsDisplayed-NeoForge-2.0.10.jar)
Jade [15.10.5+neoforge] (Jade-1.21.1-NeoForge-15.10.5.jar)
Just Enough Items [19.27.0.340] (jei-1.21.1-neoforge-19.27.0.340.jar)
Just Enough Resources [1.6.0.17] (JustEnoughResources-NeoForge-1.21.1-1.6.0.17.jar)
Kaleidoscope ChineseFood [1.1.5-neoforge+1.21.1] (kaleidoscope_chinesefood-1.1.5-neoforge+1.21.1.jar)
Kaleidoscope Compat [2.8.2-neoforge+mc1.21.1] (kaleidoscope_compat-2.8.2-neoforge+mc1.21.1.jar)
Kaleidoscope Cookery [1.4.1-neoforge+mc1.21.1] (kaleidoscopecookery-1.4.1-neoforge+mc1.21.1.jar)
Kaleidoscope Doll Workshop [1.0.4] (kaleidoscope_doll_workshop-1.0.4-neoforge+mc1.21.1.jar)
Kaleidoscope Tavern [1.1.2-neoforge+mc1.21.1] (kaleidoscopetavern-1.1.2-neoforge+mc1.21.1.jar)
KaleidoscopeCookery:Automation [1.0.2] (kaleidoscopecookery_automation-1.0.2.jar)
Kotlin for Forge [NrSebcsG] (kotlinforforge-5.11.0-all.jar)
KubeJS [2101.7.2-build.368] (kubejs-neoforge-2101.7.2-build.368.jar)
L_Ender's Cataclysm 1.21.1 [3.31] (L_Ender's Cataclysm 1.21.1-3.31.jar)
LambDynamicLights [4.8.9+1.21.1] (lambdynamiclights-4.8.9+1.21.1.jar)
Lithium [0.15.3+mc1.21.1] (lithium-neoforge-0.15.3+mc1.21.1.jar)
LootJS [1.21.1-3.7.0] (lootjs-neoforge-1.21.1-3.7.0.jar)
Lunarini Spread [1.0.0-1.12.1] (lunarinispread-1.0.0-1.12.1.jar)
MaFgLib [0.4.3+mc1.21.1] (mafglib-0.4.3+mc1.21.1.jar)
Macaw's Bridges [3.1.2] (mcw-bridges-3.1.2-mc1.21.1neoforge.jar)
Maid Restaurant [0.2.8] (maid_restaurant-0.2.8.jar)
MaidUseHandCrank [1.6.2] (MaidUseHandCrank_1.6.2-neoforge_21.1.219-1.21.1.jar)
Merchant Markers [1.3.6] (MerchantMarkers-1.21.1-neoforge-1.3.6.jar)
ModernFix [5.27.14+mc1.21.1] (modernfix-neoforge-5.27.14+mc1.21.1.jar)
MonoLib [4.0.2] (monolib-neoforge-1.21.1-4.0.2.jar)
Moonlight Lib [1.21.1-3.0.14] (moonlight-neoforge-1.21.1-3.0.14.jar)
Mouse Tweaks [2.26.1] (MouseTweaks-neoforge-mc1.21-2.26.1.jar)
Musket Mod [1.5.4] (musketmod-1.21.1-neoforge-1.5.4.jar)
My Nether's Delight [1.10.2] (MyNethersDelight-1.21.1-1.10.2.jar)
Naturalist [1.0.2] (naturalist-1.0.2-neoforge-1.21.1.jar)
Night Lights [1.3.0] (nightlights-neoforge-1.3.0.jar)
Nirvana [2.0.11] (nirvana-forge-2.0.11.jar)
Noisium [2.7.0+mc1.21-1.21.1] (noisium-neoforge-2.7.0+mc1.21-1.21.1.jar)
Obscure Tooltips [4.2.2] (obscure_tooltips-neoforge-1.21.1-4.2.2.jar)
Order To Cook [1.3.5] (ordertocook-1.3.5-neoforge1.21.1.jar)
Patchouli [1.21.1-93-NEOFORGE] (Patchouli-1.21.1-93-NEOFORGE.jar)
Platform [1.3.3] (Platform-neoforge-1.21.1-1.3.3.jar)
Player Animator [2.0.4+1.21.1] (player-animation-lib-forge-2.0.4+1.21.1.jar)
Plushie Buddies [1.0.1-neofroge-1.21.1] (plushie_buddies-1.0.1-neofroge-1.21.1.jar)
Quark [4.1-480] (Quark-4.1-480.jar)
Reese's Sodium Options [2.0.5+mc1.21.1] (reeses-sodium-options-neoforge-2.0.5+mc1.21.1.jar)
Resourcefulconfig [3.0.11] (resourcefulconfig-neoforge-1.21-3.0.11.jar)
Rhino [2101.2.7-build.85] (rhino-2101.2.7-build.85.jar)
Ribbits [1.21.1-NeoForge-4.1.6] (Ribbits-1.21.1-NeoForge-4.1.6.jar)
Ritchie's Projectile Library [2.1.2] (ritchiesprojectilelib-2.1.2+mc.1.21.1-neoforge.jar)
RuOK Mod [1.7.4] (ruok-neoforge_1.21.1_Pre-Release_5-1.7.4.jar)
RunicLib [5.0.7] (neoforge-runiclib-1.21.1-5.0.7.jar)
Sable [2.0.3] (sable-neoforge-1.21.1-2.0.3.jar)
Sable: Physics Compat [1.3.0] (sablephysicscompat-1.3.0.jar)
Save My Shit Network [1.4.1-1.21.1] (smsn-neoforge-1.4.1-1.21.1.jar)
Searchables [1.0.2] (Searchables-neoforge-1.21.1-1.0.2.jar)
Simple Voice Chat [1.21.1-2.6.18] (voicechat-neoforge-1.21.1-2.6.18.jar)
Sit [1.4] (sit-1.21.1-1.4.jar)
Sodium [0.8.12-beta.1+mc1.21.1] (sodium-neoforge-0.8.12-beta.1+mc1.21.1.jar)
Sodium Extra [0.8.7+mc1.21.1] (sodium-extra-neoforge-0.8.7+mc1.21.1.jar)
Sodium Extras [1.0.7] (sodiumextras-neoforge-1.0.8-1.21.1.jar)
Sodium Supplementaries Compat [1.0.0] (sodium_supplementaries_compat-1.0.0.jar)
Sooty Chimneys [1.3.5] (sootychimneys-neoforge-1.3.5.jar)
Sophisticated Backpacks [3.25.64] (sophisticatedbackpacks-1.21.1-3.25.64.1919.jar)
Sophisticated Backpacks Create Integration [0.1.7] (sophisticatedbackpackscreateintegration-1.21.1-0.1.7.119.jar)
Sophisticated Core [1.4.59] (sophisticatedcore-1.21.1-1.4.59.2032.jar)
Storage Drawers [13.11.4] (StorageDrawers-neoforge-1.21.1-13.11.4.jar)
Supplementaries [1.21.1-3.6.7] (supplementaries-neoforge-1.21.1-3.6.7.jar)
Supplementaries Squared [1.21-1.2.17] (suppsquared-1.21-1.2.17-neoforge.jar)
TerraBlender [4.1.0.8] (TerraBlender-neoforge-1.21.1-4.1.0.8.jar)
The Aether [1.5.10] (aether-1.21.1-1.5.10-neoforge.jar)
Thirst Was Taken [1.21.1-2.1.5] (ThirstWasTaken-1.21.1-2.1.5.jar)
Touhou Little Maid [1.5.3-neoforge+mc1.21.1] (touhoulittlemaid-1.5.3-neoforge+mc1.21.1.jar)
Trofers [8.0.1] (trofers-neoforge-8.0.1.jar)
Untranslated Items [1.21-1.10] (UntranslatedItems-neoforge-1.21-1.10.jar)
VanillaBackport [1.1.7.10] (VanillaBackport-neoforge-1.21.1-1.1.7.10.jar)
Veil [4.2.1] (veil-neoforge-1.21.1-4.2.1.jar)
WorldgenFeatureFix [1.0.1] (worldgenfeaturefix-neoforge-1.21-1.0.1.jar)
Xaero's Minimap [26.1.0] (xaerominimap-neoforge-1.21.1-26.1.0.jar)
Xaero's World Map [1.41.0] (xaeroworldmap-neoforge-1.21.1-1.41.0.jar)
YUNG's API [1.21.1-NeoForge-5.1.6] (YungsApi-1.21.1-NeoForge-5.1.6.jar)
Zeta [1.1-40] (Zeta-1.1-40.jar)
[Let's Do] Bakery [2.1.6] (letsdo-bakery-neoforge-2.1.6.jar)
[Let's Do] Farm & Charm [1.1.22] (letsdo-farm_and_charm-neoforge-1.1.22.jar)
lionfishapi [3.0] (lionfishapi-3.0.jar)
oωo [0.12.15.5-beta.1+1.21] (owo-lib-neoforge-0.12.15.5-beta.1+1.21.jar)
spark [1.10.124] (spark-1.10.124-neoforge.jar)

Crash Report

https://mclo.gs/HTtsRft

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    type: crashSomething crashes my game

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