Hi, previously I got the error as reported above. I then restarted Zotero standalone and it briefly flashed an error icon and then started to sync endlessly. When I checked, my latest file added had been uploaded to the library at zotero.org.
I then restarted to get the debug output D1474126708.
Can you provide a Debug ID (different from a Report ID) for a sync attempt that produces an error?
I then restarted to get the debug output D1474126708.
(I got the same issue on Zotero on firefox)
thanks
The upcoming Zotero 5.0 should be much better at avoiding issues like this.