Ominous vault cannot be obtained in creative mode outside of natural spawning

Put the summary of the bug you're having here

What I expected to happen was...:
i expected to be able to place ominous vaults the way you can place normal vaults

What actually happened was...:
ominous vaults cannot be found in the creative menu, using /give, using /setblock, or by using the pick block function

Steps to Reproduce:
1. search ominous vault in the creative menu
2. type /give @s ominous_vault
3. type /setblock ~ ~ ~ ominous_vault

4. find or spawn in a trial chambers and middle click on an ominous vault