Paladins Elemental Advantage is no longer working on bosses after Patch

White Knight

Shield Mastery: At Mastery Level: Guard chance increased from 10\% to 20\%.
Lightning Charge: When used multiple times, damage boost not reduced.
Paladin

Divine Shield: Protective shield now active for the duration: At Master Level: Shield activation rate increased from 30\% to 50\%.
Advanced Charge: Chance to stun enemies when using Charge Blow: Instant kill chance: At Master Level: Damage increased from 370\% to 400\%, Max instant kill chance: 10\%.
Heavens Hammer: Changed to multi hit skill: At Master Level: Damage changed from 1700\% to 425\%, Number of Attacks: 4.
Blast: At Master Level: Damage changed from 260\% to 200\%, Number of attacks changed from 4 to 6."

I can't prove nothing on elemental advantages, but nowhere did it even say that you will ignore elemental resistances. You must be mixing it up for a recent KMS patch.