ChatGPT: Branching chat fails in web app | OpenAI | Page 1

Reported by @oblique sleet

Bug Report: ChatGPT: Branching chat fails in web app

`Steps to Reproduce`

Open an existing conversation on ChatGPT (web) and scroll to an earlier message (not the latest).

Click “Create a thread from this message” (a.k.a. “Branch in new chat”).

Observe that a new browser tab opens to a URL similar to: https://chatgpt.com/c/WEB:<uuid>.

(Optional) In the new tab, try Ctrl+Shift+R (hard reload).

`Expected Result`

A new branched conversation is created starting from the selected message, and the new chat opens with the full conversation context up to that message.

The branch should appear in the chat list (e.g., as a “Branch” chat) and be accessible/reopenable.

`Actual Result`

A new tab opens to https://chatgpt.com/c/WEB:<uuid> but loads an empty ChatGPT interface (no conversation). After hard reload (Ctrl+Shift+R), it shows the “start a new conversation” screen, as if no branch exists.

`Environment`

Windows 11 Home (24H2); ChatGPT Web App; Firefox 148.0 (64-bit)

Additional Information

Please provide relevant details to help resolve the issue, such as:

ChatGPT Shared Link (if applicable).
Screenshots or videos demonstrating the problem.

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#ChatGPT: Branching chat fails in web app