I've downloaded the latest version of Pitbull and on the 2.4 PTR I get this error.
Interface\Addons\Pitbull\Aura\Update.lua:195: attempt to index upvalue 'enemyDebuffs' (a nil value)
It happens whenever I am targeting a mob with more than one debuff on it. The error box will not go away unless I untarget the mob, and I cannot see what debuffs are on the mob. A similar thing happens when I target people that have flasks on or that are mounted, or other odd things.