Codex Windows app exits immediately on launch with Crashpad dump on Korean/non-ASCII Windows user profile path

What version of the Codex App are you using (From “About Codex” dialog)?

The GUI app does not open, so I cannot check the version from the About Codex dialog. Installed package: OpenAI.Codex_26.611.7849.0_x64__2p2nqsd0c76g0 Install location: C:\Program Files\WindowsApps\OpenAI.Codex_26.611.7849.0_x64__2p2nqsd0c76g0 Codex CLI version: codex-cli 0.130.0-alpha.5

What subscription do you have?

ChatGPT Plus

What platform is your computer?

Windows 11, x64, Windows build 10.0.26200 series Codex installed from Microsoft Store / winget msstore source User profile path contains Korean/non-ASCII characters

What issue are you seeing?

The Codex Windows desktop GUI app exits immediately after launch and no window appears.

When launching from Start Menu or PowerShell:

Start-Process "shell:AppsFolder\OpenAI.Codex_2p2nqsd0c76g0!App"

The process appears briefly and then exits. No Codex/OpenAI process remains.

The latest app log always stops after:

info Launching app agentRunId=null allowDebugMenu=false allowDevtools=false allowInspectElement=false buildFlavor=prod enableSparkle=false enableUpdater=true nodeEnv=undefined packaged=true platform=win32
info [windows-store-updater] Checking Windows Store for package updates buildVersion=26.611.7849.0 manifestBuildVersion=26.611.8273.0 packageIdentity=OpenAI.Codex
info Appshot hotkey inactive configured=true enabled=true platform=win32

A Crashpad dump is generated on each launch.

Example:
C:\Users<Korean-non-ASCII-username>\AppData\Local\Packages\OpenAI.Codex_2p2nqsd0c76g0\LocalCache\Roaming\Codex\web\Codex\Crashpad\reports\1dbd39aa-b7a0-4eb8-99b8-96e0d2ae0b7d.dmp

Size:
36,388,432 bytes

I am not attaching the dump publicly because it may contain sensitive information, but I can share it privately if requested.

Things already tried:

• Installed/verified Microsoft Edge WebView2 Runtime
• Verified Microsoft.WindowsAppRuntime packages are installed and Status = Ok
• Verified Microsoft.VCLibs packages are installed and Status = Ok
• Checked Microsoft Store / winget update: no available upgrade
• Reset-AppxPackage
• AppX re-register
• Renamed web profile cache
• Renamed/recreated cua_node runtime folder
• Reset ~/.codex/config.toml to minimal config: model = "gpt-5.5"
• Direct launch with Electron logging and GPU disabled produced no stdout/stderr
• Windows Application event log does not show a useful Codex crash entry

The Codex CLI can launch, and Windows sandbox setup completed successfully. The remaining issue is specifically the Windows GUI app exiting immediately with Crashpad dump generation.

What steps can reproduce the bug?

1. Install Codex from Microsoft Store / winget msstore source.
2. Use a Windows user account whose profile path contains Korean/non-ASCII characters.
3. Launch Codex from Start Menu.
4. Alternatively, run:

Start-Process "shell:AppsFolder\OpenAI.Codex_2p2nqsd0c76g0!App"

1. Observe that no GUI window appears.
2. Check Task Manager or Get-Process: no Codex/OpenAI process remains.
3. Check Codex logs and Crashpad folder.

What is the expected behavior?

The Codex Windows desktop app should open normally and show the GUI.

Additional information

This may be related to non-ASCII/Korean Windows user profile paths.

My user profile path contains Korean characters:
C:\Users\<Korean-non-ASCII-username>

I plan to test with a new ASCII-only Windows local user such as C:\Users\codexuser and will update this issue with the result.