Sharing non-functional

🐛 bug report

Description of the problem

Trying to follow the guide at https://codesandbox.io/docs/learn/sandboxes/embedding the Share button is non-functional. Choosing Unlisted or Public does nothing, and no control appears for the embeddable URL.

How has this issue affected you? What are you trying to accomplish?

It is impossible to embed a working sandbox in a Medium article.

To Reproduce

Log in as me to https://codesandbox.io/p/devbox/counter-react-js-9pywm9?file=%2Fsrc%2Fui.jsx%3A8%2C3 and attempt to make the sandbox public. The Unlisted and Public options appear to be available in the Share dropdown, but they do nothing. Reloading the page demonstrates that the sandbox remains in Draft mode regardless of interactions with this dropdown.

Link to sandbox: link (optional)

https://codesandbox.io/p/devbox/counter-react-js-9pywm9?file=%2Fsrc%2Fui.jsx%3A8%2C3

Your Environment

Start by reproducing the issue in the linked Devbox using the Share dropdown, selecting Unlisted or Public, and reloading the page. Trace the sharing flow from that control; done means the selected visibility persists and an embeddable URL control appears so the sandbox can be embedded.