To reproduce:
Open a chest and shift-click items into it. Doing this quickly seems to crash the game faster.
Expected result:
The items stay in the chest without crashing the game.
Actual result:
The game crashes with the “mouseReleased event handler” reason.
Edit to add crash report after testing with official Minecraft launcher:
---- Minecraft Crash Report ----
// Hi. I'm Minecraft, and I'm a crashaholic.
Time: 2025-07-29 12:19:11
Description: mouseClicked event handler
java.lang.IllegalArgumentException: Failed to hash minecraft:container=>dgg@8a91bd40: Unsupported operation
at gub.a(SourceFile:464)
at com.mojang.serialization.DataResult$Error.getOrThrow(DataResult.java:287)
at gub.a(SourceFile:464)
at wl.a(SourceFile:32)
at java.base/java.lang.Iterable.forEach(Iterable.java:75)
at wl.a(SourceFile:32)
at wm.b(SourceFile:69)
at guk.a(SourceFile:468)
at gip.a(SourceFile:592)
at gip.a(SourceFile:388)
at fvl.a(SourceFile:130)
at fvl.c(SourceFile:238)
at bwh.execute(SourceFile:110)
at fvl.b(SourceFile:238)
at org.lwjgl.glfw.GLFWMouseButtonCallbackI.callback(GLFWMouseButtonCallbackI.java:43)
at org.lwjgl.system.JNI.invokeV(Native Method)
at org.lwjgl.glfw.GLFW.glfwPollEvents(GLFW.java:3438)
at com.mojang.blaze3d.systems.RenderSystem.pollEvents(SourceFile:148)
at com.mojang.blaze3d.systems.RenderSystem.flipFrame(SourceFile:159)
at foo.a(SourceFile:308)
at fvk.c(SourceFile:1364)
at fvk.g(SourceFile:940)
at net.minecraft.client.main.Main.main(SourceFile:259)
A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------
-- Head --
Thread: Render thread
Stacktrace:
at gub.a(SourceFile:464)
at com.mojang.serialization.DataResult$Error.getOrThrow(DataResult.java:287)
at gub.a(SourceFile:464)
at wl.a(SourceFile:32)
at java.base/java.lang.Iterable.forEach(Iterable.java:75)
at wl.a(SourceFile:32)
at wm.b(SourceFile:69)
at guk.a(SourceFile:468)
at gip.a(SourceFile:592)
at gip.a(SourceFile:388)
at fvl.a(SourceFile:130)
at fvl.c(SourceFile:238)
at bwh.execute(SourceFile:110)
at fvl.b(SourceFile:238)
at org.lwjgl.glfw.GLFWMouseButtonCallbackI.callback(GLFWMouseButtonCallbackI.java:43)
at org.lwjgl.system.JNI.invokeV(Native Method)
at org.lwjgl.glfw.GLFW.glfwPollEvents(GLFW.java:3438)
at com.mojang.blaze3d.systems.RenderSystem.pollEvents(SourceFile:148)
at com.mojang.blaze3d.systems.RenderSystem.flipFrame(SourceFile:159)
-- Affected screen --
Details:
Screen name: gjc
Stacktrace:
at fvl.a(SourceFile:130)
at fvl.c(SourceFile:238)
at bwh.execute(SourceFile:110)
at fvl.b(SourceFile:238)
at org.lwjgl.glfw.GLFWMouseButtonCallbackI.callback(GLFWMouseButtonCallbackI.java:43)
at org.lwjgl.system.JNI.invokeV(Native Method)
at org.lwjgl.glfw.GLFW.glfwPollEvents(GLFW.java:3438)
at com.mojang.blaze3d.systems.RenderSystem.pollEvents(SourceFile:148)
at com.mojang.blaze3d.systems.RenderSystem.flipFrame(SourceFile:159)
at foo.a(SourceFile:308)
at fvk.c(SourceFile:1364)
at fvk.g(SourceFile:940)
at net.minecraft.client.main.Main.main(SourceFile:259)
-- Mouse --
Details:
Mouse location: Scaled: (254.666667, 157.666667). Absolute: (764.000000, 473.000000)
Screen size: ~~ERROR~~ IllegalFormatConversionException: f != java.lang.Integer
Button: 0
Stacktrace:
at fvl.a(SourceFile:130)
at fvl.c(SourceFile:238)
at bwh.execute(SourceFile:110)
at fvl.b(SourceFile:238)
at org.lwjgl.glfw.GLFWMouseButtonCallbackI.callback(GLFWMouseButtonCallbackI.java:43)
at org.lwjgl.system.JNI.invokeV(Native Method)
at org.lwjgl.glfw.GLFW.glfwPollEvents(GLFW.java:3438)
at com.mojang.blaze3d.systems.RenderSystem.pollEvents(SourceFile:148)
at com.mojang.blaze3d.systems.RenderSystem.flipFrame(SourceFile:159)
at foo.a(SourceFile:308)
at fvk.c(SourceFile:1364)
at fvk.g(SourceFile:940)
at net.minecraft.client.main.Main.main(SourceFile:259)
-- Uptime --
Details:
JVM uptime: 119.919s
Wall uptime: 103.230s
High-res time: 102.042s
Client ticks: 1598 ticks / 79.900s
Stacktrace:
at fvk.d(SourceFile:2373)
at fvk.c(SourceFile:1009)
at fvk.g(SourceFile:961)
at net.minecraft.client.main.Main.main(SourceFile:259)
-- Affected level --
Details:
All players: 1 total; gyy{name=Jamtastic_, id=213, pos=(375.0776512259926, 64.0, -3372.3152113017018), mode=SURVIVAL, permission=0}
Chunk stats: 529, 329
Level dimension: minecraft:overworld
Level spawn location: World: (0,128,0), Section: (at 0,0,0 in 0,8,0; 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: 48281264 game time, 23797495 day time
Server brand: vanilla
Server type: Integrated singleplayer server
Tracked entity count: 278
-- Last reload --
Details:
Reload number: 1
Reload reason: initial
Finished: Yes
Packs: vanilla, file/Jamie's Custom Pack
-- System Details --
Details:
Minecraft Version: 25w31a
Minecraft Version ID: 25w31a
Operating System: Windows 11 (amd64) version 10.0
Java Version: 21.0.7, Microsoft
Java VM Version: OpenJDK 64-Bit Server VM (mixed mode), Microsoft
Memory: 288222008 bytes (274 MiB) / 1006632960 bytes (960 MiB) up to 2147483648 bytes (2048 MiB)
CPUs: 8
Processor Vendor: AuthenticAMD
Processor Name: AMD Ryzen 5 3500U with Radeon Vega Mobile Gfx
Identifier: AuthenticAMD Family 23 Model 24 Stepping 1
Microarchitecture: Zen / Zen+
Frequency (GHz): 2.10
Number of physical packages: 1
Number of physical CPUs: 4
Number of logical CPUs: 8
Graphics card #0 name: AMD Radeon(TM) Vega 8 Graphics
Graphics card #0 vendor: Advanced Micro Devices, Inc.
Graphics card #0 VRAM (MiB): 2048.00
Graphics card #0 deviceId: VideoController1
Graphics card #0 versionInfo: 30.0.13044.0
Memory slot #0 capacity (MiB): 8192.00
Memory slot #0 clockSpeed (GHz): 3.20
Memory slot #0 type: DDR4
Virtual memory max (MiB): 14252.75
Virtual memory used (MiB): 10192.48
Swap memory total (MiB): 8192.00
Swap memory used (MiB): 641.67
Space in storage for jna.tmpdir (MiB): available: 138483.13, total: 487443.00
Space in storage for org.lwjgl.system.SharedLibraryExtractPath (MiB): available: 138483.13, total: 487443.00
Space in storage for io.netty.native.workdir (MiB): available: 138483.13, total: 487443.00
Space in storage for java.io.tmpdir (MiB): available: 138483.13, total: 487443.00
Space in storage for workdir (MiB): available: 138483.13, total: 487443.00
JVM Flags: 9 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss1M -Xmx2G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M
Launched Version: 25w31a
Launcher name: minecraft-launcher
Backend library: LWJGL version 3.3.3+5
Backend API: AMD Radeon(TM) Vega 8 Graphics GL version 3.2.14761 Core Profile Forward-Compatible Context 21.30.44 30.0.13044.0, ATI Technologies Inc.
Window size: 1920x1080
GFLW Platform: win32
Render Extensions: GL_ARB_buffer_storage, GL_KHR_debug, GL_ARB_vertex_attrib_binding, GL_ARB_direct_state_access
GL debug messages:
Is Modded: Probably not. Client jar signature and brand is untouched; Server jar signature and brand is untouched
Universe: 400921fb54442d18
Type: Integrated Server (map_client.txt)
Graphics mode: fast
Render Distance: 8/8 chunks
Resource Packs: vanilla, file/Jamie's Custom Pack (incompatible)
Current Language: en_us
Locale: en_US
System encoding: Cp1252
File encoding: UTF-8
CPU: 8x AMD Ryzen 5 3500U with Radeon Vega Mobile Gfx
Server Running: true
Player Count: 1 / 8; [aug['Jamtastic_'/213, l='ServerLevel[Modless]', x=375.08, y=64.00, z=-3372.32]]
Active Data Packs: vanilla
Available Data Packs: file/BackToBlocks.zip (incompatible), file/BetterStonecutterV112.zip (incompatible), file/DurabilityPing v1.1.6.zip (incompatible), file/ExplosionRebuilderDatapack.v3.1.zip (incompatible), file/HeightenedTrees.zip (incompatible), file/Pacifist Crafting Tweaks.zip (incompatible), file/Silktouchspawners.zip (incompatible), file/Straight to Shapeless.zip (incompatible), file/anti ghast grief v1.1.6 (MC 1.20-1.20.4).zip (incompatible), file/armor statues v2.8.11 (MC 1.20-1.20.4).zip (incompatible), file/cauldron concrete v2.0.9 (MC 1.20-1.20.4).zip (incompatible), file/custom nether portals v2.3.9 (MC 1.20-1.20.4).zip (incompatible), file/cuttable_wood_v3-balanced.zip (incompatible), file/easy-bone-blocks-v1-0-1.zip (incompatible), file/more mob heads v2.12.4 (MC 1.20-1.20.4).zip (incompatible), file/silence mobs v1.2.1 (MC 1.20-1.20.4).zip (incompatible), file/terracotta rotation wrench v1.1.7 (MC 1.20-1.20.4).zip (incompatible), file/unpackable-minecarts-v1.3.zip (incompatible), file/update_1_21_no_trial_chambers_1.20.4.zip (incompatible), file/wandering trades hermit edition v1.9.0 (MC 1.20-1.20.4).zip (incompatible), minecart_improvements, redstone_experiments, trade_rebalance, vanilla
Enabled Feature Flags: minecraft:vanilla
World Generation: Stable
World Seed: 617194183
Suppressed Exceptions: ~~NONE~~Linked issues
duplicates 1
Comments 4
Does this issue also occur when the game is launched with the official Minecraft launcher? If so, please attach the crash report created in that case too. If not, this issue should be reported to MultiMC instead.
This issue is being temporarily resolved as Awaiting Response. Once the requested information has been delivered, the report will be reopened automatically.
Quick Links:
📓 Bug Tracker Guidelines – 💬 Community Support – 📧 Mojang Support (Technical Issues) – 📧 Microsoft Support (Account Issues)
📓 Project Summary – ✍️ Feedback and Suggestions – 📖 Game Wiki
Thank you for your report!
We're resolving and linking this ticket forward as a duplicate of MC-300187, as that ticket contains more detailed information and/or has already been triaged by Mojang.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
Quick Links:
📓 Bug Tracker Guidelines – 💬 Community Support – 📧 Mojang Support (Technical Issues) – 📧 Microsoft Support (Account Issues)
📓 Project Summary – ✍️ Feedback and Suggestions – 📖 Game Wiki
Update: The crash seems to trigger on clicking an item, not just shift-clicking it. Attempting to move a shulker to my inventory crashed the game. I had just disabled all datapacks except [minecart-improvements] as well, so disregard those in the crash report.