Reponse incoherent and incomplete - didn't finish sentence in one case.

Question

### What version of Codex is running?

codex-cli 0.77.0

### What subscription do you have?

Pro

### Which model were you using?

5.2 codex

### What platform is your computer?

Darwin 25.2.0 arm64 arm

### What issue are you seeing?

Some responses are incoherent, nonsensical, and didn't finish the sentence in one case.

### What steps can reproduce the bug?

Uploaded thread: 019b8ccb-45f9-7411-9508-8137fb6f31d9

### What is the expected behavior?

_No response_

### Additional information

_