Black manacles still not working properly

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Platform, device version and operating system:
PC, Steam, Windows 8

Screenshot or image:

What you were expecting to happen, and what actually happened:
I was expecting to get some kind of response on the last thread but that hasn’t happened.
Over 1500 casts now in the last two weeks with and average activation rate of 8%, well below the 20% stated.

How often does this happen? When did it begin happening?
Happens all the time

Steps to make it happen again
Casts Black Manacles and watch it fail.

did you count the instances where devour triggers but the enemy has immunity? its kinda hard to catch on 4x speed

Accounted for because it displays the name of the trait used to defend it when spells are cast.

Existing thread there