Just an error i ran into, easy work around but i like the ui and don't really know any way to contribute improvements aside from sharing errors.
Code:
1x [ADDON_ACTION_FORBIDDEN] AddOn 'nibRealUI' tried to call the protected function 'UseQuestLogSpecialItem()'.
!BugGrabber\BugGrabber.lua:573: in function <!BugGrabber\BugGrabber.lua:573>
[C]:: in function 'UseQuestLogSpecialItem'
...ObjectiveTracker\Blizzard_ObjectiveTrackerShared.lua:95: in function <...ObjectiveTracker\Blizzard_ObjectiveTrackerShared.lua:88>