Polybius Anointment Bugged?

Hey guys. Had a question, just curious about how this sort of thing works.

I have a Rad Polybius with the anointment: “After using Phaseslam, melee damage is increased by 200%” but I get no increase to my melee damage when have it equipped and use Phaseslam/Fracture.

I have a Razrez Sickle that gives 300% weapon damage on Phaseslam that works, as well as a Shredifier that gives 100% increase to melee on action skill end that also works.

Is this a bug, or am I missing something? Should I report this or is it known?

Thanks for any help!

I get in wrong forum . so I delete this post.