Custom item names not working

So when you get epic scrap from a case it doesnt say epic scrap it still calls it Blood. do i have this set up right? 

{
          "Select reward type: 0 - Item, 1 - Command": 0,
          "Chance of dropping this reward": 20,
          "The displayed chance of getting this reward": 12,
          "PNG for reward (85x85) (if not required - leave blank) (not required for regular items)": "https://i.imgur.com/qi5DzhD.png",
          "Item setting (if item type is selected)": {
            "Item name in UI (if left blank, values from lang will be used)": "epic scrap",
            "Is this a blueprint? true - yes/false - no": false,
            "Shortname item": "blood",
            "SkinID item": 2834920066,
            "Quantity setting (if you need a static value - set both fields to the same value)": {
              "Min amount": 150,
              "Max amount": 400
            }
          },