There are some issues in Zotero that are known and are being worked on; check out the list to see if your issue is one of them.
HPU Librarians look forward to helping you with Zotero, or answering your research questions. If you don't see the answer to your question on this page, or on Zotero's site, you can reach us via the "Ask Us" button to the left. It's a chat service that's available 24/7, or you can email or call us, or get in touch the old fashioned way--in person.
