Review button shows error in Editor tab: "Oops, an error has occurred" then 'Try again' button.

What version of the IDE extension are you using?

26.721.41059

What subscription do you have?

ChatGPT Pro 20x

Which IDE are you using?

Visual Studio Code, version: 1.131.0, Date: 2026-07-28, OS: Windows_NT x64 10.0.261

What platform is your computer?

_No response_

What issue are you seeing?

In the Codex (VS Code) extension, when I click Preview, or click on the hotlink of the file's path, I am seeing in editor space, under a tab that reads "Codex Diff", a red circle with a red "i" in the middle. Under the circle, "Oops, an error has occurred". Underneath that is a capsule shaped button with "Try again". If I click "Try again" I get the same thing.

<img width="1397" height="857" alt="Image" src="https://github.com/user-attachments/assets/487602aa-584d-45a1-877e-9d8afb041e04" />

What steps can reproduce the bug?

In the Codex (VS Code) extension, click Preview, or click on the hotlink of the file's path.

What is the expected behavior?

I am seeing in editor space, under a tab that reads "Codex Diff", a red circle with a red "i" in the middle. Under the circle, "Oops, an error has occurred". Underneath that is a capsule shaped button with "Try again". If I click "Try again" I get the same thing.

<img width="1397" height="857" alt="Image" src="https://github.com/user-attachments/assets/487602aa-584d-45a1-877e-9d8afb041e04" />

Additional information

It's been there for a week or longer.