[Javelin Anti-Cheat] GameService.dll crashes with 0xC0000005
I am experiencing a reproducible problem when launching Apex Legends. The game stops at the “Starting Javelin Anti-Cheat” stage and sometimes the Javelin window simply disappears without showing an error message.
Windows Event Viewer shows that EA Javelin Anti-Cheat itself is crashing during startup.
The important details are:
- EAAntiCheat.GameService.dll: 3.10.1.0
- Exception code: 0xC0000005 (Access Violation)
- Faulting module: EAAntiCheat.GameService.dll
- Faulting offsets observed:
- 0x378CE4B — reproduced in two separate launch attempts
- 0x388791C — reproduced in another launch attempt
- Windows Error Reporting identifies the application as EA Javelin Anticheat.
- After GameService crashes, EAAntiCheat.GameServiceLauncher.exe also crashes with 0xC0000005.
- The EA Anti-Cheat service subsequently fails to start:
- Event ID 7009 — service connection timeout after 90 seconds
- Event ID 7000 — EAAntiCheatService failed to start with error 1053
One particularly important observation is that the latest crash occurred during the Anti-Cheat startup stage, before the game could launch. The WER report for this crash shows that the loaded modules were primarily the EA Anti-Cheat DLL and standard Windows system DLLs; Steam Overlay was not loaded in this crash.
I have already performed hardware stability testing. OCCT CPU, Memory, and CPU+RAM tests completed without errors. The EA Anti-Cheat service configuration has also been checked and its executable path, startup type, and LocalSystem account are normal.
I also tested with Steam Overlay disabled, but the Anti-Cheat crash still occurred.
This issue started after a recent EA Javelin Anti-Cheat update. Because the crash consistently occurs inside EAAntiCheat.GameService.dll with 0xC0000005, I would appreciate it if the development team could investigate whether there is a compatibility or initialization issue with the current Javelin Anti-Cheat version.
I can provide the Windows Error Reporting logs and Packer crash dumps if needed.
Thank you.
