I have the Paladin Order Hall ability that lets me complete a World Quest from the map screen by clicking on an icon on that screen, then clicking on one of the World Quests. It's currently bugged in RealUI. I tried a full reinstall of RealUI (deleted Interface and WTF) and it's still there.
Code:
1x [ADDON_ACTION_FORBIDDEN] AddOn 'nibRealUI' tried to call the protected function 'UseWorldMapActionButtonSpellOnQuest()'.
!BugGrabber\BugGrabber.lua:573: in function <!BugGrabber\BugGrabber.lua:573>
[C]:: in function 'UseWorldMapActionButtonSpellOnQuest'
FrameXML\WorldMapFrame.lua:1826: in function <FrameXML\WorldMapFrame.lua:1822>
Let me know if you need any more details or need me to try out a fix.