When prime "backtrack" mode, context is often lost
Resolved 💬 3 comments Opened Nov 4, 2025 by BiFangKNT Closed Jan 17, 2026
💡 Likely answer: A maintainer (github-actions[bot], contributor)
responded on this thread — see the highlighted reply below.
What version of Codex is running?
codex-cli 0.53.0
What subscription do you have?
Business
Which model were you using?
gpt-5-codex
What platform is your computer?
Linux 6.8.0-87-generic x86_64 x86_64
What issue are you seeing?
As the title says, after chatting for a while, when I invoke the “backtrack” mode and fork the conversation, the context is mysteriously lost—this happens frequently.
What steps can reproduce the bug?
Looking at docs/getting-started.md#escesc-to-edit-a-previous-message, I believe the issue lies in the “trim the visible transcript” step.
Context window: 100% left (4.43K used / 272K)
What is the expected behavior?
_No response_
Additional information
_No response_
3 Comments
Potential duplicates detected. Please review them and close your issue if it is a duplicate.
Powered by Codex Action
saw：https://github.com/openai/codex/issues/5333#issuecomment-3419729561
but didn't work
Closing out old bugs.