How do i place heroic treasures on xbox

[El_Parthau]

I keep dropping these treasures but they dont count and holding RT isnt goving me the green option to place the treasure. How do i place it so it works? What button?

[Rust]

RB, sometimes I have to drop the item and pick it up again.

[Dephora]

Yup, you have to HOLD RB to see the gold aura area. Then place wherever.