Bug Unairu Tenno Schools Ability "Void Chrysalis"

[DZ-Hannibal]

Hello DE support
i was playing today with Unairu as schoole and i noticed that an ability doesn't work or looks to be bug
ability "Void Chrysalis" as described in warframe wiki "reduces damage taken by invisible allies" and once 𝐦𝐚𝐱𝐞𝐝 it gives u 𝟖𝟎% 𝐝𝐚𝐦𝐚𝐠𝐞 𝐫𝐞𝐝𝐮𝐜𝐞𝐬
i have it maxed yet i still get just 20% damage reduces

i dont know if its a bug or i missed somthing, i asked in the clan discord and they said its a bug.
I hope it will be investigated and thank you.
       

Edited September 1, 2021 by DZ-Hannibal