Crash on joining world with "Enable toggle crawling" config option turned on.

[Greenjoe12345]

If the option for "enable toggle crawling" in movement is turned to true, the game will crash seconds after loading into a world.

`---- Minecraft Crash Report ----

WARNING: coremods are present:
Aqua Acrobatics Transformer (AquaAcrobatics-1.15.4.jar)
Contact their authors BEFORE contacting forge

// Hey, that tickles! Hehehe!

Time: 4/7/25 6:31 PM
Description: Unexpected error

java.lang.NullPointerException: Unexpected error
at com.fuzs.aquaacrobatics.proxy.ClientProxy.onKeyPress(ClientProxy.java:84)
at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_7_ClientProxy_onKeyPress_KeyInputEvent.invoke(.dynamic)
at net.minecraftforge.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:90)
at net.minecraftforge.fml.common.eventhandler.EventBus.post(EventBus.java:182)
at net.minecraftforge.fml.common.FMLCommonHandler.fireKeyInput(FMLCommonHandler.java:565)
at net.minecraft.client.Minecraft.func_184118_az(Minecraft.java:2017)
at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:1808)
at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:1098)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:398)
at net.minecraft.client.main.Main.main(SourceFile:123)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

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

-- Head --
Thread: Client thread
Stacktrace:
at com.fuzs.aquaacrobatics.proxy.ClientProxy.onKeyPress(ClientProxy.java:84)
at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_7_ClientProxy_onKeyPress_KeyInputEvent.invoke(.dynamic)
at net.minecraftforge.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:90)
at net.minecraftforge.fml.common.eventhandler.EventBus.post(EventBus.java:182)
at net.minecraftforge.fml.common.FMLCommonHandler.fireKeyInput(FMLCommonHandler.java:565)
at net.minecraft.client.Minecraft.func_184118_az(Minecraft.java:2017)

-- Affected level --
Details:
Level name: MpServer
All players: 1 total; [EntityPlayerSP['redjoe12345'/1017, l='MpServer', x=-224.50, y=65.00, z=137.50]]
Chunk stats: MultiplayerChunkCache: 529, 529
Level seed: 0
Level generator: ID 00 - default, ver 1. Features enabled: false
Level generator options:
Level spawn location: World: (-224,64,132), Chunk: (at 0,4,4 in -14,8; contains blocks -224,0,128 to -209,255,143), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
Level time: 54 game time, 54 day time
Level dimension: 0
Level storage version: 0x00000 - Unknown?
Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false)
Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: false
Forced entities: 28 total; [EntityBat['Bat'/1299, l='MpServer', x=-291.77, y=14.93, z=72.32], EntitySkeleton['Skeleton'/1302, l='MpServer', x=-194.50, y=41.00, z=215.50], EntityZombie['Zombie'/1303, l='MpServer', x=-194.50, y=41.00, z=211.50], EntitySheep['Sheep'/41, l='MpServer', x=-235.50, y=63.00, z=82.50], EntitySheep['Sheep'/42, l='MpServer', x=-241.19, y=66.00, z=87.29], EntityPlayerSP['redjoe12345'/1017, l='MpServer', x=-224.50, y=65.00, z=137.50], EntitySheep['Sheep'/43, l='MpServer', x=-243.50, y=66.00, z=83.50], EntitySheep['Sheep'/44, l='MpServer', x=-242.50, y=66.00, z=86.50], EntityBat['Bat'/1325, l='MpServer', x=-163.86, y=13.83, z=148.35], EntityHorse['Horse'/68, l='MpServer', x=-162.43, y=64.00, z=99.60], EntityHorse['Horse'/69, l='MpServer', x=-163.68, y=64.00, z=99.50], EntityHorse['Horse'/70, l='MpServer', x=-160.09, y=63.00, z=99.01], EntityBat['Bat'/1372, l='MpServer', x=-217.07, y=38.00, z=208.63], EntityZombie['Zombie'/1375, l='MpServer', x=-196.50, y=19.00, z=161.50], EntityZombie['Zombie'/1419, l='MpServer', x=-191.50, y=40.00, z=212.50], EntityZombie['Zombie'/1420, l='MpServer', x=-192.50, y=40.00, z=210.50], EntityCreeper['Creeper'/1421, l='MpServer', x=-192.50, y=40.00, z=209.50], EntityCreeper['Creeper'/1422, l='MpServer', x=-189.50, y=40.00, z=210.50], EntitySpider['Spider'/1435, l='MpServer', x=-158.50, y=12.00, z=148.50], EntitySkeleton['Skeleton'/1446, l='MpServer', x=-284.50, y=44.00, z=64.50], EntityBat['Bat'/1458, l='MpServer', x=-163.49, y=21.04, z=202.45], EntityBat['Bat'/1464, l='MpServer', x=-194.49, y=12.04, z=136.56], EntityZombie['Zombie'/1471, l='MpServer', x=-210.50, y=20.00, z=214.50], EntityZombie['Zombie'/1472, l='MpServer', x=-211.50, y=20.00, z=210.50], EntityZombie['Zombie'/1473, l='MpServer', x=-211.50, y=20.00, z=209.50], EntityBat['Bat'/1475, l='MpServer', x=-144.50, y=16.00, z=203.50], EntityZombie['Zombie'/1505, l='MpServer', x=-170.50, y=27.00, z=160.50], EntityWitch['Witch'/1253, l='MpServer', x=-216.50, y=39.00, z=206.50]]
Retry entities: 0 total; []
Server brand: fml,forge
Server type: Integrated singleplayer server
Stacktrace:
at net.minecraft.client.multiplayer.WorldClient.func_72914_a(WorldClient.java:420)
at net.minecraft.client.Minecraft.func_71396_d(Minecraft.java:2741)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:427)
at net.minecraft.client.main.Main.main(SourceFile:123)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

-- System Details --
Details:
Minecraft Version: 1.12.2
Operating System: Windows 8.1 (amd64) version 6.3
Java Version: 1.8.0_51, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 1912629848 bytes (1824 MB) / 2382364672 bytes (2272 MB) up to 4294967296 bytes (4096 MB)
JVM Flags: 9 total; -Xmx4096M -XX:MetaspaceSize=256M -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump
IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 95
FML: MCP 9.42 Powered by Forge 14.23.5.2860 5 mods loaded, 5 mods active
States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored

| State  | ID             | Version      | Source                        | Signature                                |
|:------ |:-------------- |:------------ |:----------------------------- |:---------------------------------------- |
| LCHIJA | minecraft      | 1.12.2       | minecraft.jar                 | None                                     |
| LCHIJA | mcp            | 9.42         | minecraft.jar                 | None                                     |
| LCHIJA | FML            | 8.0.99.99    | forge-1.12.2-14.23.5.2860.jar | e3c3d50c7c986df74c645c0ac54639741c90a557 |
| LCHIJA | forge          | 14.23.5.2860 | forge-1.12.2-14.23.5.2860.jar | e3c3d50c7c986df74c645c0ac54639741c90a557 |
| LCHIJA | aquaacrobatics | 1.15.4       | AquaAcrobatics-1.15.4.jar     | None                                     |

Loaded coremods (and transformers): 

Aqua Acrobatics Transformer (AquaAcrobatics-1.15.4.jar)

GL info: ' Vendor: 'NVIDIA Corporation' Version: '4.6.0 NVIDIA 560.94' Renderer: 'NVIDIA GeForce RTX 4070 Ti SUPER/PCIe/SSE2'
Launched Version: 1.12.2
LWJGL: 2.9.4
OpenGL: NVIDIA GeForce RTX 4070 Ti SUPER/PCIe/SSE2 GL version 4.6.0 NVIDIA 560.94, NVIDIA Corporation
GL Caps: Using GL 1.3 multitexturing.

Using GL 1.3 texture combiners.
Using framebuffer objects because OpenGL 3.0 is supported and separate blending is supported.
Shaders are available because OpenGL 2.1 is supported.
VBOs are available because OpenGL 1.5 is supported.

Using VBOs: Yes
Is Modded: Definitely; Client brand changed to 'fml,forge'
Type: Client (map_client.txt)
Resource Packs: 
Current Language: English (US)
Profiler Position: N/A (disabled)
CPU: 16x AMD Ryzen 7 9800X3D 8-Core Processor `