When I went to sync.opera.com to check for an Android tab that wasn't syncing, this is all I could get
It's the same with android version of Opera. There was no spinning circle like always. I tried clearing the cache and cookies along with disabling ALL of my extensions and STILL no luck.
I had to use Firefox in order to get to my data. And no, I did NOT reset my data. Here's proof that I'm able to get to my data in FF.
I thought it might be a chromium issue at first, but I was able to get to my data on Vivaldi as well as FF so I'm assuming that the devs must have been messing with something because I NEVER had any trouble with going to sync.opera.com before today either on pc or android. Opera has become the worst browser there is with so many issues that just keep piling up with each new update.