Set bonuses not calculating? Spriest magister set

I used AMR through retail and really liked how it helped, I’m so happy that it’s now availble for classic.
When I used this recently on my priest (Minuswhale-Pagle) It seems that the set bonus I have of 4/8 of the magister set does not factor in to the total dps metrics. Is this a bug or am I missing an option that factors in set bonuses?

Thanks for making this addon available for Classic!!