Codex Diff window doesn't open

Open 💬 5 comments Opened Jul 12, 2026 by arsinclair
💡 Likely answer: A maintainer (github-actions[bot], contributor) responded on this thread — see the highlighted reply below.

What version of the IDE extension are you using?

26.707.41301

What subscription do you have?

Plus

Which IDE are you using?

VS Code

What platform is your computer?

Linux 6.18.9+deb14-amd64 x86_64 unknown

What issue are you seeing?

The diff is always blank and never opens. I can only see the Codex icon. Clicking on it yields nothing.

<img width="1319" height="1361" alt="Image" src="https://github.com/user-attachments/assets/ee9974ff-537f-4fca-a75b-19d0530310ce" />

What steps can reproduce the bug?

The bug is explained above. I am not aware of any specific reproduction steps. It used to work before.

What is the expected behavior?

The Diff window should correctly display the edited files.

Additional information

_No response_

View original on GitHub ↗

5 Comments

github-actions[bot] contributor · 1 month ago

Potential duplicates detected. Please review them and close your issue if it is a duplicate.

  • #32511

Powered by Codex Action

arsinclair · 1 month ago

ok looks like a duplicate of https://github.com/openai/codex/issues/32511 indeed

arsinclair · 1 month ago

Not only a Diff doesn't open today but I literally cannot get to the chat. It is stuck like this

<img width="654" height="1355" alt="Image" src="https://github.com/user-attachments/assets/6595c608-dcd1-4b22-aea1-95d8062df9f2" />

and no matter what I do, the chat doesn't show.

Codex Output is pretty useless

2026-07-14 19:18:44.911 [info] Activating Codex extension
2026-07-14 19:18:44.911 [info] [CodexMcpConnection] Spawning codex app-server
2026-07-14 19:18:44.911 [info] [IpcRouter] I am the router
2026-07-14 19:18:44.911 [info] [CodexMcpConnection] Initialize received id=1
2026-07-14 19:18:44.911 [warning] [IpcClient] Received broadcast but no handler is configured method=client-status-changed
2026-07-14 19:18:49.190 [info] [IpcRouter] I am the router
2026-07-14 19:18:49.191 [info] [IpcRouter] I am the router
2026-07-14 19:18:49.192 [warning] [IpcClient] Received broadcast but no handler is configured method=client-status-changed
arsinclair · 1 month ago

@openai some attention here please? The VSCode extension is unusable and this issue has been ignored for 2 weeks now.

nareshmukka · 1 month ago

Additional confirmed regression from Windows/VS Code:

  • Codex Diff stopped displaying changes in a workspace that is not a Git repository.
  • This previously worked correctly without Git; the extension tracked and displayed files changed during the Codex conversation.
  • The newer extension build showed no usable Codex Diff.
  • Downgrading the Codex extension to 26.715.61943 restored the diff immediately.
  • A new Codex conversation after the downgrade was able to display the changed files again.

Expected behavior: Codex Diff should continue showing Codex-generated file changes without requiring the workspace to be initialized as a Git repository.

This strongly suggests a regression introduced after 26.715.61943.