I've tried to brush with suspicous sand several times both in creative and survival and it doesn't drop anything.
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is duplicated by 7
Comments 3
Suspicious sand has an "inventory" that contains a single item that will drop when you brush it. To change the item inside, use the following command:
/data modify block x y z item.id set value "minecraft:cookie"
This will change the item in the suspicious sand at (x, y, z) to a cookie (or whatever item you want). You can see that this worked by the item slowly emerging from the sand as you brush it.
Suspicious sand from the creative inventory just has no item inside. You can also put the suspicious sand loot table using /data modify block xyz loot_table set value "minecraft:archaeology/desert_pyramid" (or desert_well instead of desert_pyramid).
This is likely due to suspicious sand requiring a loot table assigned to it to drop. Any user placed suspicious sand has no loot table.