I'm having quite a few issues since a week or two too.
I'm using version 4.5 but is happening in 8.x as well.
Look like they changed the parser in the server and now some pages are displayed blank, not displaying at all, making redirects or reloads with no sense, etc.
I thought to report as a bug for all pages that don't work now or make one for each, but, no way, they are too much.
For example, with this new version has been fixed the instagram bug where only a blank page was shown, but, now, only the comments can be seen!!! no image at all!!! Bad fix.
The IxQuick and StartPage search engines can't show results either. After several seconds waiting, the front page is shown, but the search itself doesn't work. In Opera Mini 8 can be seen some kind of redirects but without a success.
If we go to the mini demo and test there, we can see all the page rendering issues we are having without wasting money with our operators and discarding our devices.
Please, Opera techs, fix it There are a lot of pages that hadn't problems in the past, that now have. Or update the clients versions, if they are now the fault, they had been months without an update.
Or should I report a bug for each page not working?