[2026-02-07 19:30:25.084] [INFO] [dev.kostromdan.mods.crash_assistant.app.CrashAssistantApp]: CrashAssistantApp running: JVM args: [-XX:+UseSerialGC, -XX:MaxHeapFreeRatio=30, -XX:MinHeapFreeRatio=10, -XX:MaxGCPauseMillis=10000, -Xms8m, -Xmx512m]
[2026-02-07 19:30:25.089] [INFO] [dev.kostromdan.mods.crash_assistant.app.CrashAssistantApp]: CrashAssistantApp running: program args: [-jarPath, local\crash_assistant\15452_1770489002781_app.jar, -parentPID, 15452, -parentStarted, 1770489002781, -platform, NEOFORGE, -loaderJarName, neoforge-21.1.218, -minecraftVersion, 1.21.1, -childProcessesPIDs, VU5ERUZJTkVE, -crashAssistantModJarName, CrashAssistant-neoforge-1.20.6-1.21.4-1.10.28.jar, -classPath, local\crash_assistant\15452_1770489002781_app.jar;local\crash_assistant\15452_1770489002781_mod.jar;C:\Users\********\AppData\Roaming\ATLauncher\libraries\org\apache\logging\log4j\log4j-api\2.22.1\log4j-api-2.22.1.jar;C:\Users\********\AppData\Roaming\ATLauncher\libraries\org\apache\logging\log4j\log4j-core\2.22.1\log4j-core-2.22.1.jar;C:\Users\********\AppData\Roaming\ATLauncher\libraries\com\google\code\gson\gson\2.10.1\gson-2.10.1.jar;C:\Users\********\AppData\Roaming\ATLauncher\libraries\commons-io\commons-io\2.15.1\commons-io-2.15.1.jar;C:\Users\********\AppData\Roaming\ATLauncher\libraries\net\java\dev\jna\jna\5.14.0\jna-5.14.0.jar;C:\Users\********\AppData\Roaming\ATLauncher\libraries\net\java\dev\jna\jna-platform\5.14.0\jna-platform-5.14.0.jar, -parentXms, unknown, -parentXmx, 4000M, -systemRAM, 7.8g, -processor, SW50ZWwoUikgQ29yZShUTSkgaTUtODQwMFQgQ1BVIEAgMS43MEdIeg==, -serialisedGPUs, VnVsa2FuIEdQVSBkZXRlY3Rpb24gYWRkb24gbm90IGZvdW5kLCBmYWxsaW5nIGJhY2sgdG8gRGlyZWN0WApTdWNjZXNzZnVsbHkgZGV0ZWN0ZWQgR1BVcyB1c2luZyBEaXJlY3RYOgpJTlRFR1JBVEVEIDogSW50ZWwoUikgVUhEIEdyYXBoaWNzIDYzMApERURJQ0FURUQgOiBOVklESUEgR2VGb3JjZSBHVFggMTA1MAoNCg==]
[2026-02-07 19:30:25.091] [INFO] [dev.kostromdan.mods.crash_assistant.app.CrashAssistantApp]: CrashAssistantApp running from: C:\Users\********\AppData\Roaming\ATLauncher\instances\BetterMCNEOFORGEBMC5
[2026-02-07 19:30:25.092] [INFO] [dev.kostromdan.mods.crash_assistant.app.CrashAssistantApp]: crashAssistantJarName: CrashAssistant-neoforge-1.20.6-1.21.4-1.10.28.jar
[2026-02-07 19:30:25.093] [INFO] [dev.kostromdan.mods.crash_assistant.app.CrashAssistantApp]: Parent PID: 15452
[2026-02-07 19:30:25.093] [INFO] [dev.kostromdan.mods.crash_assistant.app.CrashAssistantApp]: Parent started: 1770489002781
[2026-02-07 19:30:25.099] [INFO] [dev.kostromdan.mods.crash_assistant.app.CrashAssistantApp]: Platform: NEOFORGE
[2026-02-07 19:30:25.099] [INFO] [dev.kostromdan.mods.crash_assistant.app.CrashAssistantApp]: loaderJarName: neoforge-21.1.218
[2026-02-07 19:30:25.100] [INFO] [dev.kostromdan.mods.crash_assistant.app.CrashAssistantApp]: minecraftVersion: 1.21.1
[2026-02-07 19:30:25.100] [INFO] [dev.kostromdan.mods.crash_assistant.app.CrashAssistantApp]: childProcessesPIDs: UNDEFINED
[2026-02-07 19:30:25.100] [INFO] [dev.kostromdan.mods.crash_assistant.app.CrashAssistantApp]: parentXms: unknown
[2026-02-07 19:30:25.101] [INFO] [dev.kostromdan.mods.crash_assistant.app.CrashAssistantApp]: parentXmx: 4000M
[2026-02-07 19:30:25.101] [INFO] [dev.kostromdan.mods.crash_assistant.app.CrashAssistantApp]: systemRAM: 7.8g
[2026-02-07 19:30:25.101] [INFO] [dev.kostromdan.mods.crash_assistant.app.CrashAssistantApp]: processor: Intel(R) Core(TM) i5-8400T CPU @ 1.70GHz
[2026-02-07 19:30:25.101] [INFO] [dev.kostromdan.mods.crash_assistant.app.CrashAssistantApp]: Boot.serialisedGPUs:
Vulkan GPU detection addon not found, falling back to DirectX
Successfully detected GPUs using DirectX:
INTEGRATED : Intel(R) UHD Graphics 630
DEDICATED : NVIDIA GeForce GTX 1050
[2026-02-07 19:30:25.103] [INFO] [dev.kostromdan.mods.crash_assistant.app.CrashAssistantApp]: os.name: windows 11
[2026-02-07 19:30:25.107] [INFO] [dev.kostromdan.mods.crash_assistant.app.CrashAssistantApp]: Java path: C:\Users\********\AppData\Roaming\ATLauncher\runtimes\minecraft\java-runtime-delta\windows-x64\java-runtime-delta\bin\javaw.exe
[2026-02-07 19:30:25.109] [INFO] [dev.kostromdan.mods.crash_assistant.app.CrashAssistantApp]: Java version: 21.0.7+6-LTS
[2026-02-07 19:30:25.139] [INFO] [dev.kostromdan.mods.crash_assistant.app.CrashAssistantApp]: CrashAssistantApp started successfully. Waiting for PID 15452 to stop.
[2026-02-07 19:31:41.297] [INFO] [dev.kostromdan.mods.crash_assistant.app.CrashAssistantApp]: Minecraft is running on renderer:
Intel(R) UHD Graphics 630
[2026-02-07 19:31:41.303] [WARN] [dev.kostromdan.mods.crash_assistant.app.CrashAssistantApp]: Detected Minecraft running on integrated GPU:
Intel(R) UHD Graphics 630,
while one or more dedicated exists:
[2026-02-07 19:31:41.425] [WARN] [dev.kostromdan.mods.crash_assistant.app.CrashAssistantApp]: Showing IntegratedGPUWarning.
[2026-02-07 19:32:11.362] [WARN] [dev.kostromdan.mods.crash_assistant.app.CrashAssistantApp]: Shown IntegratedGPUWarning.
[2026-02-07 19:57:58.584] [INFO] [dev.kostromdan.mods.crash_assistant.app.CrashAssistantApp]: PID "15452" is not alive or reused by another process. Minecraft JVM appears to have stopped.
[2026-02-07 19:59:17.535] [INFO] [dev.kostromdan.mods.crash_assistant.app.CrashAssistantApp]: Adding latest.log from C:\Users\********\AppData\Roaming\ATLauncher\instances\BetterMCNEOFORGEBMC5\logs\latest.log
[2026-02-07 19:59:17.803] [INFO] [dev.kostromdan.mods.crash_assistant.app.CrashAssistantApp]: Adding debug.log from C:\Users\********\AppData\Roaming\ATLauncher\instances\BetterMCNEOFORGEBMC5\logs\debug.log
[2026-02-07 19:59:19.326] [INFO] [dev.kostromdan.mods.crash_assistant.app.CrashAssistantApp]: stderr_stream.log size: 386 bytes
[2026-02-07 19:59:20.592] [INFO] [dev.kostromdan.mods.crash_assistant.app.CrashAssistantApp]: Adding atlauncher.log from C:\Users\********\AppData\Roaming\ATLauncher\instances\BetterMCNEOFORGEBMC5\..\..\logs\atlauncher.log
[2026-02-07 19:59:21.333] [INFO] [dev.kostromdan.mods.crash_assistant.app.CrashAssistantApp]: Skipping duplicate log as it's already added to the list: C:\Users\********\AppData\Roaming\AtLauncher\logs\atlauncher.log
[2026-02-07 19:59:22.623] [INFO] [dev.kostromdan.mods.crash_assistant.app.CrashAssistantApp]: Adding crash_assistant_app.log from C:\Users\********\AppData\Roaming\ATLauncher\instances\BetterMCNEOFORGEBMC5\logs\crash_assistant\crash_assistant_app.log
[2026-02-07 19:59:22.623] [INFO] [dev.kostromdan.mods.crash_assistant.app.CrashAssistantApp]: Reached first tick of TitleScreen: true
[2026-02-07 19:59:22.624] [INFO] [dev.kostromdan.mods.crash_assistant.app.CrashAssistantApp]: Joined world successfully: true
[2026-02-07 19:59:22.765] [INFO] [dev.kostromdan.mods.crash_assistant.app.CrashAssistantApp]: stop() function of Minecraft fired: false
[2026-02-07 19:59:22.765] [INFO] [dev.kostromdan.mods.crash_assistant.app.CrashAssistantApp]: close() function of Minecraft failed: false
[2026-02-07 19:59:22.765] [INFO] [dev.kostromdan.mods.crash_assistant.app.CrashAssistantApp]: emergencySave() function of Minecraft fired: false
[2026-02-07 19:59:27.449] [INFO] [dev.kostromdan.mods.crash_assistant.app.CrashAssistantApp]: isModpackCreator: false
[2026-02-07 19:59:27.558] [INFO] [dev.kostromdan.mods.crash_assistant.app.CrashAssistantApp]: isHelpLinkDefault: false
[2026-02-07 19:59:27.587] [INFO] [dev.kostromdan.mods.crash_assistant.app.CrashAssistantApp]: helpLink: https://discord.gg/lunapixel
[2026-02-07 19:59:27.608] [INFO] [dev.kostromdan.mods.crash_assistant.app.CrashAssistantApp]: Seems like Minecraft crashed without any crash report. Starting Crash Assistant app.
[2026-02-07 20:00:23.272] [INFO] [dev.kostromdan.mods.crash_assistant.app.CrashAssistantApp]: CrashAssistantGUI took to start: 132.631 seconds.
[2026-02-07 20:00:33.476] [INFO] [dev.kostromdan.mods.crash_assistant.common_config.mod_list.ModListUtils]: Parsed 329 mod(s) metadata in 8906 ms
[2026-02-07 20:00:40.469] [INFO] [dev.kostromdan.mods.crash_assistant.app.CrashAssistantApp]: Adding modlist.txt from C:\Users\********\AppData\Roaming\ATLauncher\instances\BetterMCNEOFORGEBMC5\logs\modlist.txt
[2026-02-07 20:00:56.403] [INFO] [dev.kostromdan.mods.crash_assistant.app.CrashAssistantApp]: Reading finished in 4575 ms
[2026-02-07 20:00:56.418] [WARN] [dev.kostromdan.mods.crash_assistant.app.CrashAssistantApp]: Skipping MixinApply analysis due to it's in beta and game ran by the end user of this modpack.
[2026-02-07 20:00:56.473] [INFO] [dev.kostromdan.mods.crash_assistant.app.CrashAssistantApp]: Analysis finished in 4673 ms
[2026-02-07 20:00:56.476] [INFO] [dev.kostromdan.mods.crash_assistant.app.CrashAssistantApp]: Showing KnownCrashReason: ModernFixWatchDog
We detected a message at the end of **latest.log** from the IntegratedWatchdog about a server tick taking way longer than it should have:
**A single server tick has taken 63572, more than 40000 milliseconds**
If you were not doing something extremely demanding, like using WorldEdit to change trillions of blocks,
this likely means the Integrated Server has **deadlocked**.
A **deadlock** happens when parts of the game are waiting for each other and preventing anything from continuing,
like a traffic jam where every car is blocking another.
To fix this crash, check the **thread dump** at the end of the log: it shows which parts of the game were waiting for each other.
This can be hard to understand without technical knowledge.
You can try using some advanced reasoning LLM to analyze the **thread dump**; it may help identify the mod causing the issue.
If this happened in an unmodified modpack, please report it to the developers: it shouldn't happen.
[2026-02-07 20:01:00.710] [INFO] [dev.kostromdan.mods.crash_assistant.app.CrashAssistantApp]: Shown KnownCrashReason: ModernFixWatchDog (Seen warning for 4.106s)
[2026-02-07 20:01:38.178] [INFO] [dev.kostromdan.mods.crash_assistant.app.CrashAssistantApp]: IP-like version replacements computed: [0∙4∙3∙21, 2∙2∙2∙11, 19∙0∙0∙1, 5∙0∙0∙7, 3∙0∙2∙1, 4∙1∙0∙3, 1∙21∙1∙11, 4∙1∙0∙8, 2∙1∙0∙0, 19∙27∙0∙340, 1∙25∙12∙4, 0∙12∙15∙5, 0∙1∙8∙1, 0∙1∙5∙1, 0∙1∙4∙1, 1∙2∙10∙1, 0∙1∙0∙1, 10∙1∙0∙3, 0∙4∙3∙6, 1∙1∙4∙3, 1∙26∙01∙1]