I've searched the forum for this issue without success. I have upgraded my Mac to Zotero 5.0.76 and when I open Zotero and click on a record in one of my collections, it no longer opens the detailed record on the right side of the zotero window. I went to preferences but the "user interface" section of the preferences is no longer there. I have 5.0.74 on my Macbook and the detailed record is still visible on the right in this version. I'm hoping someone can help. thank you!