Vivaldi disappears - black screen
Since updating to Sierra I now have the following problem.. When I open up a Private window and go back to the original window, the original window is black. When you close the private window, the original window returns Also if you hit F3 to arrange your desktop, the closed private window still shows as being active although it is a black screen Is it just me or is it a bug?
It's probably a bug. There were other reports of problems with Vivaldi combined with Sierra. I can't tell because I will likely remain on El Capitan for the next few months. If you aren't a developer it is generally advisable to wait for the .2 or .3 release until you update your system, this way most of the issues will already be resolved.