Outputting a bunch of gibberish

What version of Codex CLI is running?

codex-cli 0.118.0

What subscription do you have?

Pro

Which model were you using?

gpt-5.4

What platform is your computer?

Darwin 21.6.0 x86_64 i386

What terminal emulator and version are you using (if applicable)?

Terminal.app

What issue are you seeing?

I did a normal /review of uncommitted changes. Afterwords, I responded with a statement and it thought for a very long time, and then it output a bunch of meaningless gibberish

<img width="1746" height="393" alt="Image" src="https://github.com/user-attachments/assets/3e80fd81-2080-4641-bb42-f6686cb26ae6" />

What steps can reproduce the bug?

Uploaded thread: 019d4cae-0885-7481-8bdc-4b73a9b39787

What is the expected behavior?

_No response_

Additional information

_No response_