[Windows App] Codex hangs indefinitely when prompt contains chatgpt-conversation:// markdown links

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

26.715.12143

What subscription do you have?

ChatGPT PLUS

What platform is your computer?

Microsoft Windows NT 10.0.26100.0

What issue are you seeing?

Bug report

Environment

• OS: Windows 11
• Codex App: Windows Desktop App
• Model: GPT-5.6 Luna
• Project type: Local folder workspace

Description

Codex App freezes when a prompt contains a Markdown link using the internal URI scheme:

[Obsidian 使用教程](chatgpt-conversation://xxxx)

After submitting the prompt:

• The task remains stuck on "Thinking"
• The UI keeps showing loading spinner
• Clicking the task later also freezes
• Creating new tasks under the same project also freezes

Other projects work normally.

Steps to reproduce

1. Create/open a local project.
2. Send a prompt containing:

[example](chatgpt-conversation://some-id)

### What steps can reproduce the bug?

1. Open a local project in Codex App.
2. Send a prompt containing:

[example](chatgpt-conversation://12345)

3. Submit the prompt.
4. Codex enters an infinite loading state.

Removing the chatgpt-conversation:// markdown link fixes the issue.

### What is the expected behavior?

Codex should treat chatgpt-conversation:// links as plain text or show an unsupported URI warning.

It should not freeze the task/project.

### Additional information

The original task was about creating a Python tool for organizing Obsidian Markdown images.

Before the freeze, Codex successfully generated:

- organize_markdown_images.py
- test_organize_markdown_images.py
- organize_markdown_images_README.md

The issue appears to happen during prompt/thread parsing rather than during code generation.

Possible cause:
Codex App may attempt to resolve the internal chatgpt-conversation:// URI and wait indefinitely.