Terminal output isn't echoed properly

What version of Codex is running?

0.1.2505172129

Which model were you using?

codex-mini-latest

What platform is your computer?

Darwin 24.5.0 arm64 arm

What steps can reproduce the bug?

1. Run codex.
2. Type something.

What is the expected behavior?

What you type appears.

What do you see instead?

Nothing, unless I press ctrl-c or enter or something else that forces a "flush"

Additional information

It's an issue with the terminal UI library you're using. I'm 99% sure of this because Claude Code had _exactly the same bug_. At some point they did an update and it just went away, so I don't know what they did, but the fact that you have such similar TUI and the same bug is strongly suggestive.