I posted this under the Android section too, as I suspect the duplication bug exists in the Opera for Android code.
https://sync.opera.com/web/ shows that I have 15 bookmarks.
opera://sync-internals/ on my desktop shows that I have 2866 bookmarks, and 25,040 bookmarks in total! Those were all from Opera on Android which have duplicated my bookmarks ten-fold, and it was all uploaded yesterday and then loaded onto my desktop browser.
I manually cleaned up the bookmarks on my desktop, but from what I can tell Opera on my desktop is no longer able to upload these cleaned bookmarks to the server!
Status from Last Completed Session
Sync Source: NOTIFICATION
GetKey Step Result: UNSET
Download Step Result: SYNCER_OK
Commit Step Result: SERVER_RETURN_CONFLICT
There is absolutely no communication from Opera about whether or not they are working to fix this. So, is anything happening to fix sync??
And can we please get some regular communications regarding the status of sync? A link on the front page which shows a 'Opera Sync Status' or something? That would be great.