After the latest snapshot I can't grant/revoke custom crafts using command:
/advancement grant Vampire_Artyom everything
/advancement revoke Vampire_Artyom everything
It gives the message:
Couldn't grant/revoke 0 advancements to Vampire_Artyom as they already have them
Btw, I haven't got any advanecements 😞
you need to write datapack name "datapack:recipe", `cause without it checks "minecraft:recipe". Also for recipes you need to use /recipe, not /advancement..