Skull Flame Shield healing proc not working properly

Recently have been using Skull Flame when doing some SM Cath mass pulls. I’ve noticed that over the course of around 6-7 runs that the drain life proc goes off approx 3-4 times per run even when tanking 60+ mobs at a time. To add to the confusion the flamestrike proc which has a 1% proc rate compared to the 3% drain life proc rate is going off constantly.

Not seeing any other mentions of this happening to anyone else

are you level 70? its most likely because mobs are missing/youre dodging their hits. since skullflame works off “hit” and not when it blocks the bigger your level difference the more noticeably less it will proc

also there was an issue in vanilla where the shield would only proc lifesteal if you were facing them, even though it worked based off when hit