Loot Table command doesn't work

/give @s chest{BlockEntityTag:{LootTable:"modname:categoryoftheloottable/loottablename"}} when i use this command every time i place the chest its randomize loot, but i don't know why when i put into a structure its the same for every structure that spawn here is a tutorial i used on youtube but i don't know if its gonna work or not for you https://youtu.be/jwdF35LM22Q but on me it didn't work.

Hope it helps for something. :)

I actually managed to sloved. When the loot is generated you need to see if everything is fine and placed again and don't openet and then you exported and you have generated loot.

Kitty mod dev u saved my life omg thx