Codex Desktop language setting changes localeOverride but UI remains English

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

26.519.2081.0

What subscription do you have?

Not sure

What platform is your computer?

Microsoft Windows NT 10.0.19045.0 x64

What issue are you seeing?

Codex Desktop language setting does not apply to the UI.

The selected language changes in Settings, and the config files are updated, but the visible app UI remains English.

Environment:

• App: Codex Desktop
• Version: 26.519.2081.0
• OS: Microsoft Windows NT 10.0.19045.0 x64
• Locales tried: zh-CN, es-419

Observed:

• Settings > Language can be changed to Chinese or Spanish.
• C:\Users\Administrator\.codex\config.toml updates correctly:

[desktop]
localeOverride = "es-419"

• C:\Users\Administrator\.codex\computer-use\config.json also updates:

"locale": "es-419"

• After restarting Codex, the UI still renders in English.
• Clearing UI cache under %APPDATA%\Codex did not fix it.
• This affects multiple languages, not only Chinese.

Expected:
The app UI should switch to the selected language after changing Language and restarting Codex.

Attachments:
Screenshot showing Settings > Language set to español / 中文 while the UI remains English.

What steps can reproduce the bug?

Steps to reproduce:

1. Open Codex Desktop.
2. Go to Settings.
3. In General > Language, change the language from English to another locale, for example:

• 中文（中国） / zh-CN
• español (Latinoamérica) / es-419

1. Restart Codex Desktop.
2. Reopen Settings.

Actual result:
The Language dropdown shows the selected locale, and config files are updated, but the app UI text remains English.

Expected result:
The app UI should switch to the selected language after changing the Language setting and restarting the app.

Notes:
This reproduces with multiple languages, not only Chinese. Clearing UI cache under %APPDATA%\Codex did not fix it.

What is the expected behavior?

_No response_

Additional information

_No response_