When I click a defensive discipline via my paladins gloves or ring of the strong, it will sometimes not work at all, even though the timer for it fires...which prevents me from clicking again to try.
This seems to happen every 4 or 5 clicks of a defensive disc on my paladin....so far it appears to happen most often to the glove, but I use them the most (duh) because of the 10 minute timer. Another factor that seems to amplify the issue happens when I click the gloves or ring immediately *after* the disc drops. Normally I try to time the next defensive disc "click" very close to when the defensive drops and I find waiting for 10 or 15 seconds in between (which can be very difficult to do when you're being pounded on!) seems to mitigate the issue quite a bit if not completely..not 100% sure though I wasn't recording the results just going on memory. I haven't tested this really thoroughly but I am experiencing this issue as described and it has happened at least 5 times now so I know I'm not imagining it. The defensive has definitely misfired on both the Ring of the Strong and Trimdet's Gauntlets of Chivalry.