store=true doesn't work with chatgpt.com/backend-api/codex/responses

What version of Codex CLI is running?

codex 0.136.0

What subscription do you have?

chatGPT plus

Which model were you using?

gpt 5.5

What platform is your computer?

Linux 6.5.0-1027-oem x86_64 x86_64

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

_No response_

Codex doctor report

What issue are you seeing?

I follow this doc https://developers.openai.com/api/docs/guides/websocket-mode#reconnect-and-recover to try to set store=true in codex source, and it returns 400 with the response is Store must be set to false. Does it work with chatgpt.com/backend-api/codex/responses?

What steps can reproduce the bug?

set store=true and rebuild codex source and run it

What is the expected behavior?

store=true works with the codex source; do I need to configure anything else?

Additional information

_No response_