Stuck in an endless "duplicate_email" login loop (Case ) — Need backend help!

ChatGPT Bugs
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1

Environment

  • Surface: Web (Windows/Mac) & Android/iOS mobile browsers
  • Browser or app version: Latest versions of Google Chrome and Brave
  • Affected feature and model, if relevant: Account Authentication / Login Gateway

Bug

  • What happened, and what did you expect?
    My existing ChatGPT account suddenly logged out. When I click “Login” and select “Continue with Google” (using my original email:************), the system bypasses the login screen and forces me into a brand-new user sign-up flow (/about-you). If I try to fill it out, it throws a severe conflict error: This email address is already in use (error_code: duplicate_email). I expected the system to log me directly into my existing profile and chat history.

Reproduction

  • Steps or a minimal example prompt:
  1. Go to ://chatgpt.com.
  2. Select “Continue with Google” (or try typing email manually and clicking “Forgot Password”).
  3. The server skips the login check entirely and routes the browser to a pending signup state (/create-account/password or /about-you).
  4. Attempting to complete the form triggers the duplicate_email exception loop.

Diagnostics

  • Exact error or screenshot: This email address is already in use (error_code: duplicate_email) at the signup validation checkpoint.
  • When it happened (with timezone) and how often: Ongoing loop across multiple independent networks (Wi-Fi and mobile cellular data), multiple different browsers (Chrome, Brave), and separate physical devices (PC and mobile phone). This proves the bug is a server-side account mapping conflict in the backend database.
  • Note: I have an active support ticket open under Case Number: ******** with agent John, but the standard automated troubleshooting steps have failed to break the loop. Seeking engineering assistance to manually clear the pending registration flag on my profile mapping.
2

Environment

  • Surface: Web (Windows/Mac) & Android/iOS mobile browsers
  • Browser or app version: Latest versions of Google Chrome and Brave
  • Affected feature and model, if relevant: Account Authentication / Login Gateway

Bug

  • What happened, and what did you expect?
    My existing ChatGPT account suddenly logged out. When I click “Login” and select “Continue with Google” (using my original email: *************), the system bypasses the login screen and forces me into a brand-new user sign-up flow (/about-you). If I try to fill it out, it throws a severe conflict error: This email address is already in use (error_code: duplicate_email). I expected the system to log me directly into my existing profile and chat history.

Reproduction

  • Steps or a minimal example prompt:
  1. Go to ://chatgpt.com.
  2. Select “Continue with Google” (or try typing email manually and clicking “Forgot Password”).
  3. The server skips the login check entirely and routes the browser to a pending signup state (/create-account/password or /about-you).
  4. Attempting to complete the form triggers the duplicate_email exception loop.

Diagnostics

  • Exact error or screenshot: This email address is already in use (error_code: duplicate_email) at the signup validation checkpoint.
  • When it happened (with timezone) and how often: Ongoing loop across multiple independent networks (Wi-Fi and mobile cellular data), multiple different browsers (Chrome, Brave), and separate physical devices (PC and mobile phone). This proves the bug is a server-side account mapping conflict in the backend database.
  • Note: I have an active support ticket open under Case Number: ****** with agent John, but the standard automated troubleshooting steps have failed to break the loop. Seeking engineering assistance to manually clear the pending registration flag on my profile mapping.
3

I am currently facing this issue today, this morning. I’m from Malaysia by the way.
My ChatGPT suddenly got logged out from both my iOS iPhone as well as my Desktop.
Whenever I wanna log in, somehow it brings me to the sign up page. And when I proceed with the name and age input, it shows me This email is already in use. error_code: duplicate_email.

Please can anyone help me with a solution as I have a monthly subscription in there. I’m so worried that it gets hacked or some sort. OpenAI, can you please do something about it.