Is Polcirkeln not working or am I tripping

It say's "Enemies chilled by your hits can be shattered as though frozen", but it's not consistent at all. I would expect every chilled enemy to shatter, but that's not the case, at most it's a 50/50. I double triple checked if the enemy is chilled when killed- it is, yet it's not shattering half the time, neither is it triggering Herald of Ice (not talking about some massive pre-fix herald chains, I just want consistent shatters as the item advertises)

Is the item not working or am I missing something? For sure if the 50/50 shatter chance was intended it would phrase that on the item right?

Ok, I think I was indeed tripping, I was looking at freeze buildup and thniking it was chill. It ain't.
Kinda sucks that mobs get their status effect pictures, yet there's no way to hover them and see what they mean/do exactly