[BUG] Cannot log into Codex macOS app although ChatGPT and Codex Web work normally

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

26.429.61741

What subscription do you have?

ChatGPT Plus

What platform is your computer?

macOS

What issue are you seeing?

I can log into ChatGPT and Codex Web successfully using the same account.

However, the Codex macOS desktop app keeps asking me to log in again and cannot complete authentication properly. Sometimes phone verification/OTP does not work inside the app.

I already tried:

Reinstalling the app
Clearing cache and application data
Using different internet connections
Disabling VPN/extensions
Incognito/private mode login flow

The issue only happens on the Codex desktop app for macOS.

Account email:
[vidongls12345@gmail.com](mailto:vidongls12345@gmail.com)

What steps can reproduce the bug?

Steps to reproduce:

1. Open the Codex desktop app on macOS
2. Click “Sign in with Google”
3. Select the same Google account used successfully on ChatGPT Web and Codex Web
4. Complete the Google authentication flow
5. The app redirects back and keeps asking to log in again instead of completing authentication

Additional notes:

• ChatGPT Web login works
• Codex Web login works
• Only the macOS desktop app fails
• Reinstalling and clearing cache did not help
• Different networks and disabling VPN/extensions also did not help

What is the expected behavior?

Expected behavior:
The Codex macOS desktop app should complete Google authentication successfully and log into the account normally without returning to the login screen again.

Additional information

_No response_