I beat one boss but the drop is not in my inventory *SPOILERS*

[Accelerator]

I beat the scadutree avatar and he drop Miquella´s great rune.
the problem is this: the grat rune is not in my inventory or grate runes menu in the site of grace.
Someone else have this problem?
Sorry my redact, spanish is my mother lenguage

[Dollmaker]

It’s not a great tune, it’s reusable item.

[ﾏｿｿｿ ₒ❤]

it's a usable item you can put on your item slot, not a rune for equipping in great rune slot

[Accelerator]

thanks for the answer