local HTML Browser Open button does nothing and local screenshot previews always stay stale on Windows

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

26.429.61741

What subscription do you have?

Pro

What platform is your computer?

Microsoft Windows NT 10.0.26100.0 x64

What issue are you seeing?

Environment:

• Codex Desktop on Windows
• Local workspace on a secondary drive
• Local HTML and PNG files opened from disk

Issue 1:
When Codex renders a local HTML file as a preview card in chat, the card includes an Open button. Clicking the Open button does not do anything. The in-app browser does not open or navigate to the local file, and no visible error is shown.

Issue 2:
Local screenshot previews in chat can stay stale after the underlying file is overwritten.

What steps can reproduce the bug?

Issue 1:

1. In a Windows Codex Desktop workspace, create a simple local HTML file, for example:

C:\Projects\example-site\preview.html

1. Link it in a Codex response using a local file markdown link:

[preview.html](C:/Projects/example-site/preview.html)

1. A preview card appears in chat with an Open button.
2. Click Open.

Issue 2:

1. Generate or save a screenshot, for example:

C:\Projects\example-site\preview.png

1. Link or display it in Codex chat.
2. Overwrite preview.png with a new screenshot.
3. Link or display the same path again.

What is the expected behavior?

The chat image preview should show the updated screenshot.

This makes local frontend/design review confusing because users cannot reliably open generated HTML previews or trust that screenshot previews are showing the latest file contents.

Additional information

What actually happens instead is the chat preview will continue showing the older image.