Trying to add items to blacklist but they are still spawning

ive blacklisted a handful of items yet they are still spawning. Ive tried both ways that the decsription says I can stop items from spawning. but nothing changes. ive reloaded the plugin and also reloaded the whole server.

Working with existing Loot Tables

You can go into 'oxide/data/MagicLoot.json' to modify all items that can possibly be spawned. Here you will find a dictionary of all items containing as the key the 'Item Shortname' and as the value the 'Stacksize' it can be spawned in. If you change the 'Stacksize' to 0, the item will not be spawned.

Blacklisted Items

You can manally add item shortnames to the Blacklisted Items to block these from spawning.

"Blacklisted Items (Item-Shortnames)": [
"ammo.rocket.smoke",
"hat.cap",
"shutter.wood.a",
"mask.balaclava",
"mailbox",
"bucket.water",
"fireplace.stone",
"spinner.wheel",
"shirt.tanktop"
],