unexpected status 400 Bad Request

What version of Codex is running?

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Which model were you using?

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What platform is your computer?

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What steps can reproduce the bug?

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⚠️ stream error: unexpected status 400 Bad Request: {"code":20015,"message":"\"messages\" in request are illegal.","data":null}; retrying 1/5 in 196ms…

⚠️ stream error: unexpected status 400 Bad Request: {"code":20015,"message":"\"messages\" in request are illegal.","data":null}; retrying 2/5 in 423ms…

⚠️ stream error: unexpected status 400 Bad Request: {"code":20015,"message":"\"messages\" in request are illegal.","data":null}; retrying 3/5 in 808ms…

⚠️ stream error: unexpected status 400 Bad Request: {"code":20015,"message":"\"messages\" in request are illegal.","data":null}; retrying 4/5 in 1.735s…

⚠️ stream error: unexpected status 400 Bad Request: {"code":20015,"message":"\"messages\" in request are illegal.","data":null}; retrying 5/5 in 3.116s…

■ unexpected status 400 Bad Request: {"code":20015,"message":"\"messages\" in request are illegal.","data":null}

What is the expected behavior?

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What do you see instead?

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Additional information

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