Problem syncing with server
I haven't had any problems syncing with the server until recently. I tried syncing in the standalone version, but after the sync is completed (the arrow stops spinning), no new references are shown. I checked my library online, and there are at least 75 references that appear that that should be downloading into the standalone version. I'm not getting any type of error message, and I've tried restarting Firefox several times, so I'm not sure what the problem might be. Any help would be appreciated. Thanks!
Try making any random small change on one of those items on the website (say, add something to the extra or rights field) and see if that triggers sync.
"processing updated data from the sync server"
But then nothing happens - none of the ~75 new references on the server are appearing in the Standalone. I tried making a few changes to a couple items on the website, but I'm getting the same results (still not downloading)...
If so, I suppose a debug ID covering a manually triggered sync might help:
https://www.zotero.org/support/debug_output
together with the URL of a couple of items you have on the server but don't have syncing down (unless your library is public, the URLs won't let other people see the data, but they server as an identifier for items, too).