I'm taking a course that includes a link to a public notebook.
I opened the link in the browser and clicked on "Join Notebook".
In the new web interface it shows up in the regular Notebooks list, and does NOT show up in the Shared with me section.
If I try and click on the notebook, it just gives me an error message: "You no longer have access to this notebook" and then redirects me back to the All Notes screen.
If I go to the Notebooks management section, I can't even hover over the "..." icon without it giving me the error message and then redirecting me back to the All Notes screen.
The notebook appears to work correctly if I go back to the "previous version of Evernote" as well as the iOS mobile app.
This cripples the public shared notebook functionality in the new web interface.