dusk vigil's ember fusillade passive gem

On Xbox Series, when I want to engrave a passive gem, I cannot switch the tabs to the Dusk Vigil's Ember Fusillade by pressing RB (the tab doesn't change), I have to use LB through all other skills' tab to reach it.

But the support gems availability are those of the staff's fireball (persistance and fast forward are grayed).

Therefore I still can socketed these gems manually.