Forking a public WebSocket Collection no longer works

In the Web UI, I’m trying to fork a public WebSocket collection.
Neither the “Create a Fork” menu item (under …), or the “Fork” button do anything anymore. This used to work fine, I’ve done it many times.
I even tried making a new WebSocket collection with one request and same result - fork does nothing. (doesn’t show an error, doesn’t show the fork window)

Forking REST collections is fine, but the public WebSocket collections seem to be broken. (forking a private websocket collection works ok)

Anyone else having issues?

The public collections are here…
https://www.postman.com/galactic-resonance-402003/aviator-public/overview