Extreme saving mode totally doesn't work on any Website.. Including Facebook, Twitter, Google, Wikipedia, YouTube bla..bla..bla....... No website doesn't works.
If I change it to "Data saving OFF" mode then everything works as well or If I do use any 3rd party VPN software then Opera Mini's Extreme mode works as fine as previous.
Maybe it's from Opera's Servers based on Location. I'm from Bangladesh. And I checked & tried Broadband/Wifi connection & different mobile vendors 3G connection and yet nothing.. Opera Mini's Extreme mode doesn't works at all.
Moreover, PC's Opera also has problem after this incident. PC's Opera failed to connect it's in built VPN, failed to connect to it's Update servers, failed to connect & go the Opera's FTP site.
*** By the way, if I use any VPN then all of those problem are solved. And no, Opera isn't blocked by our Govt.