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codex - 💡(How to fix) Fix [Bug] Windows Desktop App (26.422.3464.0) white screen on startup due to workspace_dependencies loop [1 comments, 2 participants]

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openai/codex#19770•Fetched 2026-04-28 06:37:27
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What version of the Codex App are you using (From “About Codex” dialog)?

26.422.3464.0

What subscription do you have?

ChatGPT Plus

What platform is your computer?

Windows 11 x64

What issue are you seeing?

App opens to a blank white window with the Codex >_ icon/spinner. Multiple Codex.exe processes remain in the background after closing the window.

Checking the logs, the app is stuck in a loop trying to enable a feature that the runtime does not support:

unsupported feature enablement 'workspace_dependencies': currently supported features are apps, memories, plugins, tool_search, tool_suggest, tool_call_mcp_elicitation method=experimentalFeature/enablement/set Failed to sync experimental feature enablement

What steps can reproduce the bug?

  1. Install the Codex App from the Microsoft Store.
  2. Launch the application.
  3. Observe the app getting stuck indefinitely on the initial loading screen (white screen with the cloud logo).

What is the expected behavior?

The app should finish loading and display the main chat/workspace interface successfully.

Additional information

Resetting the app via Windows Settings, reinstalling from the Store, and clearing the AppData/User data did not fix the issue. It appears to be an internal frontend-backend feature flag mismatch (workspace_dependencies) in this specific Windows build.

extent analysis

TL;DR

The issue is likely caused by an internal frontend-backend feature flag mismatch, and a potential fix could involve disabling the workspace_dependencies feature.

Guidance

  • The error message suggests that the workspace_dependencies feature is not supported by the runtime, so disabling this feature might resolve the issue.
  • To verify, check the app's configuration or settings to see if there's an option to disable experimental features or specifically the workspace_dependencies feature.
  • If disabling the feature is not possible through the app's settings, it may be necessary to wait for an update that addresses the feature flag mismatch.
  • Consider reporting the issue to the app's support team, as the problem persists even after resetting and reinstalling the app.

Example

No code snippet is provided as it's not explicitly mentioned in the issue.

Notes

The issue seems to be specific to the Windows build (26.422.3464.0) and the ChatGPT Plus subscription, so the solution may not apply to other versions or subscriptions.

Recommendation

Apply workaround: Disable the workspace_dependencies feature if possible, as it's likely causing the issue due to the frontend-backend feature flag mismatch.

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codex - 💡(How to fix) Fix [Bug] Windows Desktop App (26.422.3464.0) white screen on startup due to workspace_dependencies loop [1 comments, 2 participants]