Codex Cloud Code Reviews Cancelling without Completing

What issue are you seeing?

Started this morning. 80 - 90% of PR pushes (my trigger for code review) are resulting in code reviews that are listed as "Cancelled" and do not complete.

<img width="1604" height="850" alt="Image" src="https://github.com/user-attachments/assets/181ed80a-bd22-4fe2-96e1-8672d7e96bac" />

Image above shows what I mean. My workflows usually are a planned-in-advance multi-commit implementation, with review triggered for each commit, results of which then get incorporated into a review round, etc. Never seen this behavior in the last 6 months.

What steps can reproduce the bug?

I'm not sure how one would reproduce this. It's most, but not all, of my commits, and unclear if anyone else is having this problem.

What is the expected behavior?

Codex reviews the code as asked, and doesn't spontaneously cancel the review.

Additional information

_No response_