Also not working:
Got PC with Win10, Tablet with Win10, and Phone with Android 4.4.4. Between first two devices the sync is working as expected, but on my phone the last date bookmarks was synced is form 25.7.2015, thats awful mistake which still wasnt solved by Opera developeres!
Also important question, as i jumped on Opera32 (not beta) on my phone, and on my pc i was searching how the "hell" im supossed to save my bookmarks to your servers? Why is it so difficult to make it just user friendly, can you please tell me how can i save bookmarks to Your servers to be safe there and synced between my devices?
Thanks in advance. Just concentrate on sync, this should be main priority for now for Opera, as far that is what differs you from other business competitors, so far you seem bit ahead. Once You solved this critial point, i will be happy Opera user as i am for a awfull lot years and hopefuly still will be.