Loot table entries don't work

[RedBlockCreator]

Following the tut and overriding all default loot tables with the minecraft:chests/simple_dungeon or any other loot table simply doesn't work, and it keeps pulling from the builtin no matter what I do. I have followed the demo.

loot_all.json
{
"name": "test:loot_all",
"loot_rules": [
{
"level" : [0, 1, 2, 3, 4],
"type" : [
"STARTER", "FOOD", "POTIONS", "MUSIC", "SUPPLIES", "SMITH", "BREWING", "WEAPONS", "ARMOUR", "ENCHANTING"
],
"table": "minecraft:chests/simple_dungeon",
"each" : true
}
]
}

loot.json
{
"name" : "builtin:loot",
"inherit" : [
"test:loot_all"
]
}

I have tried every variation i can think of and I and a couple other people at this point are simply at a loss.