Thank you. That is what I see, so I may be mistaken in my expectations. Let me ask this: when I open my Zotero library the entry, after clicking on that icon, appears differently than the other books in my library - it appears as a link instead of the bibliographic material. Is that what it should look like?
Worldcat
https://www.zotero.org/support/kb/no_toolbar_button
If you're not getting full metadata on a particular page, we'd need the full URL you're saving from.