CLI crashing mid session

What version of Codex CLI is running?

codex-cli 0.137.0

What subscription do you have?

Plus

Which model were you using?

gpt-5.5, medium reasoning

What platform is your computer?

Darwin 24.6.0 x86_64 i386

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

zsh 5.9 (x86_64-apple-darwin24.0)

Codex doctor report

What issue are you seeing?

Midway through a branch Codex keeps crashing.

What steps can reproduce the bug?

Uploaded thread: 019e9a3c-c170-76e0-818f-9c9451d1f1c7

What is the expected behavior?

Codex continues without crashing.

Additional information

_No response_