[geekyadam]

I've been getting this error since patch release as well, and I've been following this thread to see/help with progress. So far I've tried updating Aurora, and disabling !Aurora RealUI. Neither helps. Still get same error.
Looking back over this thread I noticed I got a different error, but it mentioned BugGrabber as well:

17x [ADDON_ACTION_FORBIDDEN] AddOn 'nibRealUI' tried to call the protected function 'UseQuestLogSpecialItem()'.
!BugGrabber\BugGrabber.lua:586: in function <!BugGrabber\BugGrabber.lua:586>
[C]: in function `UseQuestLogSpecialItem'
..._ObjectiveTracker\Blizzard_QuestObjectiveTracker.lua:198: in function <..._ObjectiveTracker\Blizzard_QuestObjectiveTracker.lua:191>

Locals:
nil

For gits and shiggles, I disabled BugGrabber and tried again and got this error:

Date: 2014-12-03 19:01:34
ID: 1
Error occured in: AddOn: nibRealUI
Count: 1
Message: Error: AddOn nibRealUI attempted to call a forbidden function (UseQuestLogSpecialItem()) from a tainted execution path.
Debug:
   [C]: UseQuestLogSpecialItem()
   ..._ObjectiveTracker\Blizzard_QuestObjectiveTracker.lua:198:
      ..._ObjectiveTracker\Blizzard_QuestObjectiveTracker.lua:191
Locals:
None

Something about a tainted execution path?
Hope this helps.