The undo function is not working properly

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

26.325.21211

What subscription do you have?

Team

What platform is your computer?

x64

What issue are you seeing?

<img width="514" height="292" alt="Image" src="https://github.com/user-attachments/assets/5923d5b0-7dcf-4b69-abbd-16898877699a" />

What steps can reproduce the bug?

Input the prompt word, codex completes the code writing, and then click the undo button

What is the expected behavior?

_No response_

Additional information

_No response_