@temkem

Thank you, temkem, disabling HA worked for me.
Any ideas what triggers this? It used to work fine.

@yavannagreen

I'm thinking - perhaps update your video drivers?
Or if you have a laptop with two graphics cards - an integrated one and a more powerful one - set Opera to use the integrated one.
Wild guesses, though.

I have encountered a weird new bug/error in Opera after the newest update (I think). Happens when opening links from Facebook with a middle-mouse button (and only from Facebook as far as I've tried).

I have a habit of opening links in Facebook posts in the background tabs. Recently, however, whenever I open a tab with a middle-mouse-button click, when I go to that new tab, it's black. The Opera UI is present, all okay, but the page itself is black. (The mouse cursor changes according to the possible links and text in the black page - as if the page itself loaded but some bug places a black screen upon it). As I have mentioned above, only happens with links (and JUST the written links, not thumbnail links) from Facebook and ONLY with the middle-mouse button click. Although, whenever I open through right-mouse button option "Open link in new tab", all is fine.

I suppose it's some sort of bug with Facebook links and middle-mouse button.

Version: 44.0.2510.857 (PGO) - Opera is up to date
Update stream: Stable
System: Windows 10 64-bit
I have ticked "Delay loading of background apps" in the settings.