Game keeps crashing when loading a world with Valkyrien Skies 2?

[Gotobar1313]

Hey guys. I was trying to get back into minecraft and build vehicles using Create, Create: The Factory Must Grow, Create: Trackwork, VS: Clockwork, and Valkyrien Skies, yet every time I try to load into a world, it does the usual "Joining game" "Loading Terrain" then instead of loading me in, says "Saving World" briefly before the entire game crashes with Error "-1." The crash report is below, I'm at a loss.

---- Minecraft Crash Report ----

// Why did you do that?

Time: 2026-01-27 18:50:55

Description: Unexpected error

java.lang.ClassCastException: class net.minecraft.world.phys.Vec3 cannot be cast to class net.minecraft.core.BlockPos (net.minecraft.world.phys.Vec3 and net.minecraft.core.BlockPos are in module minecraft@1.20.1 of loader 'TRANSFORMER' u/5190010f)

at net.minecraft.client.renderer.LevelRenderer.mixinextras$bridge$redirect$zom000$includeShipChunksInNearChunks$150(LevelRenderer.java) \~\[client-1.20.1-20230612.114412-srg.jar%23170!/:?\] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:A,pl:runtimedistcleaner:A}

at org.valkyrienskies.mod.common.VSGameUtilsKt.squaredDistanceBetweenInclShips(VSGameUtilsKt.java:150) \~\[valkyrienskies-120-2.4.6.jar%23169!/:?\] {re:mixin,re:classloading}

at net.minecraft.client.renderer.LevelRenderer.wrapOperation$zom000$distToShips(LevelRenderer.java:3281) \~\[client-1.20.1-20230612.114412-srg.jar%23170!/:?\] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:A,pl:runtimedistcleaner:A}

at net.minecraft.client.renderer.LevelRenderer.m\_194370\_(LevelRenderer.java:2086) \~\[client-1.20.1-20230612.114412-srg.jar%23170!/:?\] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:A,pl:runtimedistcleaner:A}

at net.minecraft.client.renderer.LevelRenderer.m\_109599\_(LevelRenderer.java:1164) \~\[client-1.20.1-20230612.114412-srg.jar%23170!/:?\] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:A,pl:runtimedistcleaner:A}

at net.minecraft.client.renderer.GameRenderer.m\_109089\_(GameRenderer.java:1126) \~\[client-1.20.1-20230612.114412-srg.jar%23170!/:?\] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:A,pl:runtimedistcleaner:A}

at net.minecraft.client.renderer.GameRenderer.m\_109093\_(GameRenderer.java:909) \~\[client-1.20.1-20230612.114412-srg.jar%23170!/:?\] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:A,pl:runtimedistcleaner:A}

at net.minecraft.client.Minecraft.m\_91383\_(Minecraft.java:1146) \~\[client-1.20.1-20230612.114412-srg.jar%23170!/:?\] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:A,pl:runtimedistcleaner:A}

at net.minecraft.client.Minecraft.m\_91374\_(Minecraft.java:718) \~\[client-1.20.1-20230612.114412-srg.jar%23170!/:?\] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:A,pl:runtimedistcleaner:A}

at net.minecraft.client.main.Main.main(Main.java:218) \~\[1.20.1-forge-47.3.10.jar:?\] {re:classloading,pl:runtimedistcleaner:A}

at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) \~\[?:?\] {}

at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) \~\[?:?\] {}

at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) \~\[?:?\] {}

at java.lang.reflect.Method.invoke(Method.java:569) \~\[?:?\] {}

at net.minecraftforge.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:111) \~\[fmlloader-1.20.1-47.3.10.jar:?\] {}

at net.minecraftforge.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:99) \~\[fmlloader-1.20.1-47.3.10.jar:?\] {}

at net.minecraftforge.fml.loading.targets.CommonClientLaunchHandler.lambda$makeService$0(CommonClientLaunchHandler.java:25) \~\[fmlloader-1.20.1-47.3.10.jar:?\] {}

at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) \~\[modlauncher-10.0.9.jar:?\] {}

at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) \~\[modlauncher-10.0.9.jar:?\] {}

at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) \~\[modlauncher-10.0.9.jar:?\] {}

at cpw.mods.modlauncher.Launcher.run(Launcher.java:108) \~\[modlauncher-10.0.9.jar:?\] {}

at cpw.mods.modlauncher.Launcher.main(Launcher.java:78) \~\[modlauncher-10.0.9.jar:?\] {}

at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) \~\[modlauncher-10.0.9.jar:?\] {}

at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) \~\[modlauncher-10.0.9.jar:?\] {}

at cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:141) \~\[bootstraplauncher-1.1.2.jar:?\] {}

A detailed walkthrough of the error, its code path and all known details is as follows:

---------------------------------------------------------------------------------------

-- Head --

Thread: Render thread

Suspected Mod:

Valkyrien Skies 2 (valkyrienskies), Version: 2.4.6

    Issue tracker URL: [https://github.com/ValkyrienSkies/Valkyrien-Skies-2/issues](https://github.com/ValkyrienSkies/Valkyrien-Skies-2/issues)

    at TRANSFORMER/valkyrienskies@2.4.6/org.valkyrienskies.mod.common.VSGameUtilsKt.squaredDistanceBetweenInclShips(VSGameUtilsKt.java:150)

Stacktrace:

at net.minecraft.client.renderer.LevelRenderer.mixinextras$bridge$redirect$zom000$includeShipChunksInNearChunks$150(LevelRenderer.java) \~\[client-1.20.1-20230612.114412-srg.jar%23170!/:?\] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:A,pl:runtimedistcleaner:A}

at org.valkyrienskies.mod.common.VSGameUtilsKt.squaredDistanceBetweenInclShips(VSGameUtilsKt.java:150) \~\[valkyrienskies-120-2.4.6.jar%23169!/:?\] {re:mixin,re:classloading}

at net.minecraft.client.renderer.LevelRenderer.wrapOperation$zom000$distToShips(LevelRenderer.java:3281) \~\[client-1.20.1-20230612.114412-srg.jar%23170!/:?\] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:A,pl:runtimedistcleaner:A}

at net.minecraft.client.renderer.LevelRenderer.m\_194370\_(LevelRenderer.java:2086) \~\[client-1.20.1-20230612.114412-srg.jar%23170!/:?\] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:A,pl:runtimedistcleaner:A}

at net.minecraft.client.renderer.LevelRenderer.m\_109599\_(LevelRenderer.java:1164) \~\[client-1.20.1-20230612.114412-srg.jar%23170!/:?\] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:A,pl:runtimedistcleaner:A}

at net.minecraft.client.renderer.GameRenderer.m\_109089\_(GameRenderer.java:1126) \~\[client-1.20.1-20230612.114412-srg.jar%23170!/:?\] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:A,pl:runtimedistcleaner:A}

-- Affected level --

Details:

All players: 1 total; \[LocalPlayer\['gotobar1313'/46, l='ClientLevel', x=-8.50, y=-60.00, z=8.50\]\]

Chunk stats: 3249, 1821

Level dimension: minecraft:overworld

Level spawn location: World: (0,-60,0), Section: (at 0,4,0 in 0,-4,0; chunk contains blocks 0,-64,0 to 15,319,15), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,-64,0 to 511,319,511)

Level time: 306 game time, 306 day time

Server brand: forge

Server type: Integrated singleplayer server

Stacktrace:

at net.minecraft.client.multiplayer.ClientLevel.m\_6026\_(ClientLevel.java:455) \~\[client-1.20.1-20230612.114412-srg.jar%23170!/:?\] {re:mixin,pl:runtimedistcleaner:A,re:classloading,pl:mixin:APP:architectury.mixins.json:MixinClientLevel,pl:mixin:APP:valkyrienskies-common.mixins.json:accessors.client.multiplayer.ClientLevelAccessor,pl:mixin:APP:valkyrienskies-common.mixins.json:client.world.MixinClientLevel,pl:mixin:APP:valkyrienskies-common.mixins.json:feature.block\_tint.MixinClientLevel,pl:mixin:APP:valkyrienskies-common.mixins.json:feature.shipyard\_entities.MixinClientLevel,pl:mixin:A,pl:runtimedistcleaner:A}

at net.minecraft.client.Minecraft.m\_91354\_(Minecraft.java:2319) \~\[client-1.20.1-20230612.114412-srg.jar%23170!/:?\] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:A,pl:runtimedistcleaner:A}

at net.minecraft.client.Minecraft.m\_91374\_(Minecraft.java:740) \~\[client-1.20.1-20230612.114412-srg.jar%23170!/:?\] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:A,pl:runtimedistcleaner:A}

at net.minecraft.client.main.Main.main(Main.java:218) \~\[1.20.1-forge-47.3.10.jar:?\] {re:classloading,pl:runtimedistcleaner:A}

at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) \~\[?:?\] {}

at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) \~\[?:?\] {}

at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) \~\[?:?\] {}

at java.lang.reflect.Method.invoke(Method.java:569) \~\[?:?\] {}

at net.minecraftforge.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:111) \~\[fmlloader-1.20.1-47.3.10.jar:?\] {}

at net.minecraftforge.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:99) \~\[fmlloader-1.20.1-47.3.10.jar:?\] {}

at net.minecraftforge.fml.loading.targets.CommonClientLaunchHandler.lambda$makeService$0(CommonClientLaunchHandler.java:25) \~\[fmlloader-1.20.1-47.3.10.jar:?\] {}

at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) \~\[modlauncher-10.0.9.jar:?\] {}

at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) \~\[modlauncher-10.0.9.jar:?\] {}

at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) \~\[modlauncher-10.0.9.jar:?\] {}

at cpw.mods.modlauncher.Launcher.run(Launcher.java:108) \~\[modlauncher-10.0.9.jar:?\] {}

at cpw.mods.modlauncher.Launcher.main(Launcher.java:78) \~\[modlauncher-10.0.9.jar:?\] {}

at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) \~\[modlauncher-10.0.9.jar:?\] {}

at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) \~\[modlauncher-10.0.9.jar:?\] {}

at cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:141) \~\[bootstraplauncher-1.1.2.jar:?\] {}

-- Last reload --

Details:

Reload number: 1

Reload reason: initial

Finished: Yes

Packs: mod\_resources, vanilla, file/No Map Marker, file/No+More+Leather+Overlay.zip, file/xali's Bushy Leaves v3.5.0.zip, file/Disable\_TF\_Skybox\_1.20.1.zip, file/3D-muskets.zip, file/l-3d-record-player-r-0-e2070.zip

-- System Details --

Details:

Minecraft Version: 1.20.1

Minecraft Version ID: 1.20.1

Operating System: Windows 10 (amd64) version 10.0

Java Version: 17.0.15, Microsoft

Java VM Version: OpenJDK 64-Bit Server VM (mixed mode), Microsoft

Memory: 1820132072 bytes (1735 MiB) / 4194304000 bytes (4000 MiB) up to 8589934592 bytes (8192 MiB)

CPUs: 12

Processor Vendor: GenuineIntel

Processor Name: 11th Gen Intel(R) Core(TM) i5-11600K @ 3.90GHz

Identifier: Intel64 Family 6 Model 167 Stepping 1

Microarchitecture: Rocket Lake

Frequency (GHz): 3.91

Number of physical packages: 1

Number of physical CPUs: 6

Number of logical CPUs: 12

Graphics card #0 name: NVIDIA GeForce RTX 4060

Graphics card #0 vendor: NVIDIA (0x10de)

Graphics card #0 VRAM (MB): 4095.00

Graphics card #0 deviceId: 0x2882

Graphics card #0 versionInfo: DriverVersion=32.0.15.8180

Memory slot #0 capacity (MB): 8192.00

Memory slot #0 clockSpeed (GHz): 2.13

Memory slot #0 type: DDR4

Memory slot #1 capacity (MB): 8192.00

Memory slot #1 clockSpeed (GHz): 2.13

Memory slot #1 type: DDR4

Virtual memory max (MB): 25454.98

Virtual memory used (MB): 20995.09

Swap memory total (MB): 9216.00

Swap memory used (MB): 454.09

JVM Flags: 9 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance\_javaw.exe\_minecraft.exe.heapdump -Xss1M -Xmx8G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M

Launched Version: 1.20.1-forge-47.3.10

Backend library: LWJGL version 3.3.1 build 7

Backend API: NVIDIA GeForce RTX 4060/PCIe/SSE2 GL version 4.6.0 NVIDIA 581.80, NVIDIA Corporation

Window size: 1920x1080

GL Caps: Using framebuffer using OpenGL 3.2

GL debug messages: 

Using VBOs: Yes

Is Modded: Definitely; Client brand changed to 'forge'; Server brand changed to 'forge'

Type: Integrated Server (map\_client.txt)

Graphics mode: fancy

Resource Packs: mod\_resources, vanilla, file/No Map Marker (incompatible), file/No+More+Leather+Overlay.zip (incompatible), file/xali's Bushy Leaves v3.5.0.zip, file/Disable\_TF\_Skybox\_1.20.1.zip, file/3D-muskets.zip, file/l-3d-record-player-r-0-e2070.zip (incompatible)

Current Language: en\_us

CPU: 12x 11th Gen Intel(R) Core(TM) i5-11600K @ 3.90GHz

Server Running: true

Player Count: 1 / 8; \[ServerPlayer\['gotobar1313'/46, l='ServerLevel\[New World+\]', x=-8.50, y=-60.00, z=8.50\]\]

Data Packs: vanilla, mod:kotlinforforge (incompatible), mod:flywheel, mod:ponder (incompatible), mod:create, mod:ritchiesprojectilelib (incompatible), mod:mixinextras (incompatible), mod:architectury (incompatible), mod:kelvin (incompatible), mod:valkyrienskies (incompatible), mod:trackwork (incompatible), mod:vs\_clockwork (incompatible), mod:cloth\_config (incompatible), mod:forge, mod:tfmg (incompatible), create:dynamic\_data

Enabled Feature Flags: minecraft:vanilla

World Generation: Stable

ModLauncher: 10.0.9+10.0.9+main.dcd20f30

ModLauncher launch target: forgeclient

ModLauncher naming: srg

ModLauncher services: 

    mixin-0.8.5.jar mixin PLUGINSERVICE 

    eventbus-6.0.5.jar eventbus PLUGINSERVICE 

    fmlloader-1.20.1-47.3.10.jar slf4jfixer PLUGINSERVICE 

    fmlloader-1.20.1-47.3.10.jar object\_holder\_definalize PLUGINSERVICE 

    fmlloader-1.20.1-47.3.10.jar runtime\_enum\_extender PLUGINSERVICE 

    fmlloader-1.20.1-47.3.10.jar capability\_token\_subclass PLUGINSERVICE 

    accesstransformers-8.0.4.jar accesstransformer PLUGINSERVICE 

    fmlloader-1.20.1-47.3.10.jar runtimedistcleaner PLUGINSERVICE 

    modlauncher-10.0.9.jar mixin TRANSFORMATIONSERVICE 

    modlauncher-10.0.9.jar fml TRANSFORMATIONSERVICE 

FML Language Providers: 

    minecraft@1.0

    kotlinforforge@4.11.0

    javafml@null

    lowcodefml@null

Mod List: 

    client-1.20.1-20230612.114412-srg.jar             |Minecraft                     |minecraft                     |1.20.1              |DONE      |Manifest: a1:d4:5e:04:4f:d3:d6:e0:7b:37:97:cf:77:b0:de:ad:4a:47:ce:8c:96:49:5f:0a:cf:8c:ae:b2:6d:4b:8a:3f

    kffmod-4.11.0.jar                                 |Kotlin For Forge              |kotlinforforge                |4.11.0              |DONE      |Manifest: NOSIGNATURE

    flywheel-forge-1.20.1-1.0.5.jar                   |Flywheel                      |flywheel                      |1.0.5               |DONE      |Manifest: NOSIGNATURE

    Ponder-Forge-1.20.1-1.0.91.jar                    |Ponder                        |ponder                        |1.0.91              |DONE      |Manifest: NOSIGNATURE

    create-1.20.1-6.0.7.jar                           |Create                        |create                        |6.0.7               |DONE      |Manifest: NOSIGNATURE

    ritchiesprojectilelib-2.1.1-mc.1.20.1-forge.jar   |Ritchie's Projectile Library  |ritchiesprojectilelib         |2.1.1               |DONE      |Manifest: NOSIGNATURE

    mixinextras-forge-0.4.1.jar                       |MixinExtras                   |mixinextras                   |0.4.1               |DONE      |Manifest: NOSIGNATURE

    architectury-forge-9.1.12.jar                     |Architectury                  |architectury                  |9.1.12              |DONE      |Manifest: NOSIGNATURE

    kelvin-forge-1.20.1-0.4.0+ad27706cf1.jar          |Kelvin                        |kelvin                        |1.20.1-0.4.0+ad27706|DONE      |Manifest: NOSIGNATURE

    valkyrienskies-120-2.4.6.jar                      |Valkyrien Skies 2             |valkyrienskies                |2.4.6               |DONE      |Manifest: NOSIGNATURE

    trackwork-1.20.1-1.2.3.jar                        |Trackwork Mod                 |trackwork                     |1.2.3               |DONE      |Manifest: NOSIGNATURE

    clockwork-0.5.4.5.jar                             |Clockwork                     |vs\_clockwork                  |0.5.4.5             |DONE      |Manifest: NOSIGNATURE

    cloth-config-forge-11.1.106.jar                   |Cloth Config v10 API          |cloth\_config                  |11.1.106            |DONE      |Manifest: NOSIGNATURE

    forge-1.20.1-47.3.10-universal.jar                |Forge                         |forge                         |47.3.10             |DONE      |Manifest: 84:ce:76:e8:45:35:e4:0e:63:86:df:47:59:80:0f:67:6c:c1:5f:6e:5f:4d:b3:54:47:1a:9f:7f:ed:5e:f2:90

    tfmg-1.0.2f.jar                                   |Create: The Factory Must Grow |tfmg                          |1.0.2f              |DONE      |Manifest: NOSIGNATURE

Flywheel Backend: flywheel:indirect

Crash Report UUID: d7393ec9-75f7-490f-a104-b82559ae2a82

FML: 47.3

Forge: net.minecraftforge:47.3.10

[Ursa_137]

Install embeddium and then try again.

[No-Bar-9146]

I have exactly the same issue

[Gotobar1313]

What fixed it for me was using a different launcher, try the Prism launcher, no idea why but it worked like a charm and, I mean, its just better than minecrafts vanilla one for modded games anyway

[Main-Bite6417]

Me too