I noticed today that I can't set notes for any dates. (And I believe that some/all notes previously set have disappeared. This is when using the web interface; when on the phone app, I can set a new note, and that note remains visible in the phone app, but it's not visible online. This happens in both Chrome (on a Mac) and Safari (on a Mac). It also happens not only for my own listing, but one of my neighbor's listings.
I'm going to report this to AirBnB, but I'm curious if anyone else is experiencing this?