Alter of bats not working or mabey a glitch

ok i cant seem to get the triumverate staff working at the tower of bats
i put in the staff and the bat blood but it dosnt start crafting

if i move something inside of my inventory to the spot that was empty from transfering the staff and blood ,
the staff and blood reapear in my inventory as though it was never transfered to the alter

i have tried this numerous times , iv gotten the staff again to be sure it was fresh , iv beaten the bat again to make sure it was fresh but i get the same result

Steps on how to reproduce issue: