Add Phone page does not display Vietnam (+84) although VN exists in the response

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

26.707.31428

What subscription do you have?

Free

What platform is your computer?

Microsoft Windows NT 10.0.19045.0 x64

What issue are you seeing?

Description

When signing in to the official OpenAI Codex extension for VS Code with my Google account, I am redirected to:

https://auth.openai.com/add-phone

The page asks me to verify my phone number.

Expected behavior

Vietnam (+84) should appear in the Country dropdown.

Actual behavior

• Vietnam (+84) is missing from the Country dropdown.
• The dropdown contains duplicated countries.
• The country list is not sorted alphabetically.
• It appears to be a frontend rendering issue.

Evidence

Using Chrome DevTools -> Network, the HTML response contains:

<option value="VN">Vietnam</option>

Therefore the backend is returning Vietnam correctly, but the UI does not render it.

Environment

• Windows 10
• Google Chrome (latest)
• VS Code (latest)
• Official OpenAI Codex extension
• ChatGPT Free account

<img width="1920" height="1040" alt="Image" src="https://github.com/user-attachments/assets/2aee2a4e-c553-42ee-9b58-4310142c1735" />

What steps can reproduce the bug?

1/ Open Visual Studio Code
2/ Open Codex Sidebar in Visual Studio Code
3/ Press Sign in with Chatgpt
4/ Google Chrome is opened and "https://auth.openai.com/choose-an-account" page is loaded
5/ Select your Google email to continue.
6/ "https://auth.openai.com/add-phone" page is loaded
7/ At this time, this issue happened with some behaviors are as below:

• Vietnam (+84) is missing from the Country dropdown.
• The dropdown contains duplicated countries.
• The country list is not sorted alphabetically.

What is the expected behavior?

This issue should be fixed to displayed Vietnam (+84) in Country dropdown. This dropdown don't duplicate countries and it must be sorted alphabetically.

Additional information

_No response_