[macOS][26.814.41407] Standard top/bottom navigation shortcuts do not work in long thread transcripts

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

Powered by Codex & OWL
Version 26.814.41407
Released Aug 18, 2026

What subscription do you have?

ChatGPT Pro

What platform is your computer?

• macOS Tahoe 26.5.2 (25F84)
• Darwin 25.5.0
• MacBook Air (M1, 2020)
• Apple M1
• arm64

What issue are you seeing?

In ChatGPT/Codex Desktop on macOS, the standard keyboard shortcuts for quickly navigating to the beginning or end of a long conversation transcript do not work.

Inside a long Codex/Work thread, all of the following fail to move the conversation viewport:

• Cmd + Up
• Cmd + Down
• Home
• End
• Fn + Left Arrow (macOS Home equivalent)
• Fn + Right Arrow (macOS End equivalent)

There is no visible response from the transcript when these shortcuts are pressed.

Normal mouse/trackpad scrolling still works, but for long-running Codex threads this makes navigating between the beginning and latest part of the transcript unnecessarily slow.

This issue concerns the conversation transcript inside an opened thread, not the sidebar thread list.

What steps can reproduce the bug?

1. Open ChatGPT/Codex Desktop on macOS.
2. Open a sufficiently long Codex/Work thread whose transcript extends well beyond the visible viewport.
3. Give focus to the conversation/transcript area.
4. Scroll somewhere into the middle of the thread.
5. Press Cmd + Up.
6. Observe that the transcript does not jump to the beginning.
7. Press Cmd + Down.
8. Observe that the transcript does not jump to the latest/bottom of the thread.
9. Repeat with:
   • Home
   • End
   • Fn + Left Arrow
   • Fn + Right Arrow
10. Observe that none of these shortcuts provide top/bottom navigation.

What is the expected behavior?

The conversation transcript should preserve normal macOS document/scroll-view navigation behavior.

In particular:

• Cmd + Up should jump/scroll to the beginning of the thread.
• Cmd + Down should jump/scroll to the end/latest part of the thread.
• Home / Fn + Left Arrow should provide equivalent beginning navigation where applicable.
• End / Fn + Right Arrow should provide equivalent end navigation where applicable.

If Codex intentionally overrides these shortcuts, it should provide an equivalent keyboard-accessible way to jump immediately to the beginning or latest message.

Actual behavior

All six shortcuts are ignored while viewing a long thread transcript.

The only reliable way to traverse the transcript is manual mouse/trackpad scrolling.

Additional information

Reproduced on:

• ChatGPT/Codex Desktop 26.814.41407
• Released Aug 18, 2026
• MacBook Air (M1, 2020)
• Apple M1 / arm64
• macOS Tahoe 26.5.2 (25F84)

This is especially noticeable on long-running Codex threads, where the transcript may contain a large amount of tool output and many turns.

Related but distinct issues:

• #37243 requests a message-navigation rail for long Codex tasks.
• #37921 concerns navigation-rail active-position synchronization.

This report is specifically about standard macOS keyboard navigation shortcuts being ignored by the opened thread transcript.

Start by reproducing the issue in a sufficiently long opened thread transcript on macOS, with focus in the conversation area, and trace the transcript's keyboard and scrolling behavior. Done means Cmd+Up/Down, Home/End, and the Fn equivalents navigate to the transcript's beginning and latest content, or an equivalent keyboard-accessible action is provided.