Hi Elandura
Are you running an AMD GPU by any chance? We’re seeing some reports of people getting flickering on loading screens, and they’ve had success either running Windowed more, or disabling Freesync, as a temporary workaround. It’s something that’s being looked into
Naxxre - the same question goes to you regarding the flickering. As for the delay on world quest completion, and loading trouble, that’s usually down to outdated addons, especially after a patch. I’d suggest doing a full UI Reset just to get everything to a set baseline, and we can move forward from there if the issue persists