invalid_request_error after any prompt in some conversations

What version of Codex CLI is running?

0.115.0

What subscription do you have?

Enterprise

Which model were you using?

gpt-5.4

What platform is your computer?

Darwin 25.3.0 arm64 arm

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

Cursor

What issue are you seeing?

■ {
  "type": "error",
  "error": {
    "type": "invalid_request_error",
    "message": "[StringParam] [input[71].name] [invalid_string] Invalid 'input[71].name': string does not match pattern. Expected a string that matches the pattern '^[a-zA-
Z0-9_-]+$'."
  },
  "status": 400
}

Seeing this after every prompt in some conversations. Incredibly confusing and impossible to debug.

What steps can reproduce the bug?

Uploaded thread: 019d0714-ff5b-72b1-88d0-c4048635ac89

What is the expected behavior?

_No response_

Additional information

_No response_