Pally Conc taking up one of the 16 debuffs?

[Theloras-herod]

ahem…

Consecration "incorrectly" counts as a debuff

Patch 1.9 Consecration - No longer displays a debuff icon on targets in the area of effect Sounds like Blizzard brought over the data from Vanilla without any of the game server side bug fixes. AKA more bugs than actual 1.12 Vanilla.