I've encountered what seems to be a bug with the AuraTracker feature. If I set up corruption using the spellID for Corruption, 146739, and have it set to show for specialization Affliction, it pops up while I'm specc'd destruction. Here are some pictures:
Spec'd Destruction with Corruption showing up:
Spec'd Affliction and everything is peachy:
Settings for Aura Tracker with Corruption showing while spec'd destruction:
Settings set for Corruption only tracked for Demonology, Spec'd Destruction and everything is peachy!
Lots of pictures I know, just sharing what I can about the settings. If I can clarify it any better please let me know.
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Small edit to the post, I found a possible fix where if ONLY affliction is selected it loads properly for both affliction and destruction.