Codex 26.608.1337.0 (MS Store) crashes immediately on startup - process appears then disappears

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

Codex 26.608.1337.0

What subscription do you have?

Codex

What platform is your computer?

Microsoft Windows NT 10.0.22631.0 x64

What issue are you seeing?

Codex Desktop 26.608.1337.0 (Microsoft Store) crashes immediately on startup. The process appears in Task Manager for about 1 second, then disappears. No window is ever shown, no error dialog appears. ~30 crash logs were generated in a few hours — every single one truncates after exactly 2 lines with no error message. The CLI works fine; only the Desktop app is affected.

What steps can reproduce the bug?

1. Launch Codex Desktop from Start Menu or shortcut
2. Process appears in Task Manager for ~1 second
3. Process disappears, no window ever appears
4. A 2-line log file is generated and then truncated

This is 100% reproducible — happens on every launch attempt.
No code needed — normal launch reproduces it 100% of the time.

Environment:

• Windows 11 Pro 10.0.22631 (64-bit)
• Codex version: 26.608.1337.0 (auto-updated by Microsoft Store at 2026-06-11 13:33 UTC)
• GPUs: NVIDIA RTX 4060 Laptop (32.0.15.5597) + Intel Iris Xe (32.0.101.6790) + OrayIddDriver virtual adapter (17.1.58.818)
• Chinese (non-ASCII) Windows username
• WSL feature enabled but no distro installed

Every crash log looks identical — the log file simply truncates at line 3 with no error:

2026-06-11T13:57:05.917Z info Launching app agentRunId=null allowDebugMenu=false allowDevtools=false allowInspectElement=false buildFlavor=prod enableSparkle=false enableUpdater=true nodeEnv=undefined packaged=true platform=win32
2026-06-11T13:57:06.172Z info Appshot hotkey inactive configured=true enabled=true platform=win32

Crash dump: %LOCALAPPDATA%\CrashDumps\Codex.exe.4184.dmp (2.9 MB)
Log location: %LOCALAPPDATA%\Packages\OpenAI.Codex_2p2nqsd0c76g0\LocalCache\Local\Codex\Logs\2026\06\11\

What was tried (none worked):

• Reinstalling Codex
• Updating NVIDIA GPU driver
• Clearing GPU persistent cache and shader cache
• Adding multi_agent = false / multi_agent_v2 = false in config.toml
• --use-angle=d3d9, --use-angle=gl, --use-gl=swiftshader, --disable-gpu-compositing → all crash the same
• --disable-gpu --disable-software-rasterizer → process stays alive but NO window renders at all

What is the expected behavior?

_No response_

Additional information

_No response_