Garuda's AoE was changed to be instant cast now instead of the 2ish second cast it previously had; though that shouldn't make a difference on ability queuing. Contagion has been working fine for me after patch. I have it in a macro, though I admit I usually press it a couple of times just to make sure it goes off. What I'm having a problem with (and been having it prior to the patch) is Enkindle on Garuda. The game apparently doesn't do more than one pet ability on queue so hitting Contagion and then queuing Enkindle is an instant loss of the 5 min. cooldown. On top of this, sometimes activating it without any other commands have been issued in over 5 seconds spends it but doesn't go off. And this is on Obey so there's no possibilty of Garuda readying anything else but autoattacks.