Codex not loading on latest Cursor version (1.6.27)

Bug Reports
1

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

Codex is not loading at all after updating to the latest version of Cursor. It stays stuck in the loading state and never finishes.

I’ve already tried the following without success:

Restarting Cursor

Uninstalling Codex and reinstalling it

Ensuring I’m not using a VPN

Environment details:

Cursor Version: 1.6.27

VSCode Version: 1.99.3

Commit: d750e54bba5cffada6d7b3d18e5688ba5e944ad0

Date: 2025-09-17T20:21:17.042Z

Electron: 34.5.8

Chromium: 132.0.6834.210

Node.js: 20.19.1

V8: 13.2.152.41-electron.0

OS: Darwin arm64 25.0.0

Screenshots attached for reference.

Steps to Reproduce

Open Cursor (v1.6.27).

Navigate to Codex from the left sidebar.

Observe that Codex remains stuck in the loading state and never finishes.

Screenshots / Screen Recordings

CleanShot 2025-09-19 at 10.52.41@2x.png
CleanShot 2025-09-19 at [email protected]2524×1602 192 KB

Operating System

MacOS

Current Cursor Version (Menu → About Cursor → Copy)

Version: 1.6.27
VSCode Version: 1.99.3
Commit: d750e54bba5cffada6d7b3d18e5688ba5e944ad0
Date: 2025-09-17T20:21:17.042Z
Electron: 34.5.8
Chromium: 132.0.6834.210
Node.js: 20.19.1
V8: 13.2.152.41-electron.0
OS: Darwin arm64 25.0.0

2

Running into the same Issue:
Cursor Version 1.6.35
On Windows

3

Hey @xenioscharalambous @Hao_Wen, thanks for the report. Does the Codex panel fail to load when you open a blank Cursor window as well? Please also check the DevTools panel for any errors.

4

Screenshot 2025-09-22 at 17.07.31
Screenshot 2025-09-22 at 17.07.31642×1734 15.8 KB

running into the same issue

5

Fails in blank window too yes. Have had this issue for many days now.

6

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

After clicking on the ChatGPT client connection cursor interface(work with cursor), it jumps to the page for installing Codex – OpenAI’s coding agent.
However, I have already installed it, and it used to work before, but after a recent update, it can no longer connect.

Steps to Reproduce

Keeps appearing

Operating System

MacOS

Current Cursor Version (Menu → About Cursor → Copy)

Version: 1.6.45
VSCode Version: 1.99.3
Commit: 3ccce8f55d8cca49f6d28b491a844c699b8719a0
Date: 2025-09-22T18:22:38.013Z
Electron: 34.5.8
Chromium: 132.0.6834.210
Node.js: 20.19.1
V8: 13.2.152.41-electron.0
OS: Darwin arm64 24.6.0

Does this stop you from using Cursor

No - Cursor works, but with this issue

7

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image640×676 40.8 KB

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image2134×1312 333 KB

8

Has anyone found a solution to this issue yet?

Version: 1.6.45 (user setup)
VSCode Version: 1.99.3
Commit: 3ccce8f55d8cca49f6d28b491a844c699b8719a0
Date: 2025-09-22T18:22:38.013Z
Electron: 34.5.8
Chromium: 132.0.6834.210
Node.js: 20.19.1
V8: 13.2.152.41-electron.0
OS: Windows_NT x64 10.0.26100

9

Guys, I found the solution. I had wrong MCP configuration. That’s what was causing the issue. Actually cursor it self fixed it lol

1 Like
10

What is your new MCP configuration setting? I don’t think I had the Codex setup over MCP.

11

I had this issue because of incorrect configuration in ~/.codex/config.toml, after removing the broken part, it started working.

As an enhancement, I’d like to skip the wrong config, rather than break the whole extension fully

12

Thanks @Alexey_Krutilko That fixed mine as well. Updated the config.toml to this.

On windows it is located at C:\Users.codex\config.toml

~/.codex/config.toml

Global defaults

model = “gpt-5-codex”
approval_policy = “on-request”
sandbox_mode = “workspace-write”

Optional: per-project trust settings

[projects.“/abs/path/to/your/repo”]
trust_level = “trusted”

Profiles

[profiles.auto]
model = “gpt-5-codex”
sandbox_mode = “workspace-write”
approval_policy = “never”

[profiles.safe]
model = “gpt-5”
sandbox_mode = “read-only”
approval_policy = “on-request”