Codex Windows app shows blank screen when opening any project or conversation

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

Versão 26.831.21537

What subscription do you have?

ChatGPT Plus

What platform is your computer?

"$([Environment]::OSVersion | ForEach-Object VersionString) $(if ([Environment]::Is64BitOperatingSystem) { "x64" } else { "x86" })"

What issue are you seeing?

The Codex desktop app on Windows is no longer loading any conversations or projects.

The left sidebar loads correctly and I can see all my projects and previous conversations. However, when I select any project or conversation, the main content area remains completely blank.

The message input box is still visible at the bottom of the window, but the conversation history/content never appears.

This is not limited to one project. I tested multiple projects and multiple conversations and the same issue occurs everywhere.

The application was working normally before this problem started.

No specific error message is displayed in the UI.

What steps can reproduce the bug?

Feedback ID: 01a047c1-282a-7c12-a310-7374a9443b07

What is the expected behavior?

When I select a project or conversation, the Codex app should load and display the existing conversation history and allow me to continue working normally.

Switching between projects and conversations should display the corresponding content instead of leaving the main area blank.

Additional information

The issue affects all of my projects and conversations, not just one project.

The projects are still visible in the sidebar, so they do not appear to have been deleted.

The main UI loads partially:

• Sidebar loads correctly
• Projects and conversations are visible
• Message input field is visible
• Main conversation/content area stays blank

Closing and reopening the app does not resolve the issue.

I can provide screenshots or additional diagnostic information if needed.

Start by reproducing the blank main content area on Windows using the reported Codex version, selecting multiple projects and conversations after relaunching the app. Use Feedback ID 01a047c1-282a-7c12-a310-7374a9443b07 and inspect available diagnostics; no source files or tests are named. Done means existing conversation history and project content render reliably while the sidebar and input remain usable.