Windows desktop app renders blank page - root route "/" missing component

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

26.715.4045.0

What subscription do you have?

Plus

What platform is your computer?

Microsoft Windows NT 10.0.19045.0 x64

What issue are you seeing?

Bug Description

The Codex desktop app on Windows opens but renders a blank page. The sidebar (New Chat, Recent, No Tasks) and chat input field are visible, but messages are not displayed. API calls all return 200, authentication works, but the UI fails to render content.

Steps to Reproduce

1. Open Codex desktop app on Windows
2. The sidebar loads normally
3. Type a message in the chat input and send
4. Message is sent (API returns 200) but nothing renders on screen

Root Cause (from Sentry log at %APPDATA%\Codex\web\Codex\sentry\scope_v3.json)

What steps can reproduce the bug?

This is a React Router configuration issue - the root route "/" has no component bound to it.

Additional Context

• ChatGPT Classic desktop (OpenAI.ChatGPT-Desktop v1.2026.190.0) works fine
• Browser (chatgpt.com) works fine
• Reinstalling Codex app did not fix the issue
• Switching proxy nodes did not fix the issue
• All backend API calls return 200 (verified via Sentry breadcrumbs):
• /backend-api/settings/user → 200
• /backend-api/models → 200
• /backend-api/wham/tasks/list → 200
• /backend-api/accounts/check/v4-2023-04-27 → 200
• Authentication works: authMethod: chatgpt
• Secondary issue: Git path with Chinese characters causes ENOENT in child_process.spawn

Environment

• App: OpenAI.Codex v26.715.4045.0 (MSIX package)
• OS: Windows 10 (19045) x64
• Chromium: 150.0.7871.124
• Electron: 150.0.7871.124

What is the expected behavior?

_No response_

Additional information

_No response_