This happened after the "Temporary Server error. Can't sign in" error was solved. So I am able to login to my opera account on my android, but the browser doesn't sync anything at all. Upon tapping the "Speed dials on other devices" tile (Grey with cloud & circular arrows inside it), it says I have no speed dials on other devices. But I have 137 bookmarks on my Windows (10) Opera, which syncs perfectly with Opera on another Windows 10 machine.
Also, on Opera for Windows > Bookmarks (Heart icon) > Other Speed dials, my android device is not listed.Also, tabs & history are not synced & are not visible on Opera for Windows. But strangely, logging in to my opera account on the opera website & going to their sync service page, under devices it shows my phone along with my other 2 Windows devices.
I use my own encrypted passphrase for Sync. Could that be the issue for not syncing on Opera for Android?

Details:
Phone: Moto G4 Play (android 6.0.1)
Opera v42.7.2246.114996
PC: OS: Windows 10 Pro (Build 1703, OS build v15063.540), 64-bit.
Opera Browser v47.0.2631.71 (PGO)

The "Can't sign in, Temporary server error" has been fixed & now I can login through opera browser on android.
But here's the problem, although the browser is signed in, it doesn't sync anything with my other devices signed in to that account. I can't access their tabs, bookmarks etc. Also, on my Windows PC, under Bookmarks > Other Speed dials, the android device is not listed. So this implies that Opera fixed the sync sign in error superficially. Its a fake "Successful Sign-in". The Sync service just doesn't work AT ALL.
Tried reinstalling the app/logging out & logging back in. DOESN'T WORK.

Phone: Moto G4 Play (Android 6.0.1)
Opera Browser v42.7.2246.114996

Pls resolve this problem at the earliest.