Custom skill tree node not showing description in tree

Hi, i followed your vid, showing how to make a custom node. Instead of keeping it in the cooking node i added it to the Build craft node ( and removed the cooking test node). 

The problem im having, is the new description ive wrote for the skill, doesn't show, all that shows is "This is a test node etc.."

I'm trying to add Furnace v2 to unlock as a 1 time thing via the tree. 

Thanks 

Ash.

   "Furnace Upgrades": {
          "Permission required to show this node": null,
          "Minimum prestige required to unlock this node": 0,
          "Skill required to unlock node [Requires max level]": null,
          "Skill that if unlocked, will prevent this node from unlocking": null,
          "enabled": true,
          "max_level": 1,
          "tier": 1,
          "value_per_buff": 0.0,
          "buff_info": {
            "Key": "Permission",
            "Value": "Permission"
          },
          "icon_url": "https://i.imgur.com/Canm3oV.png",
          "skin": 0,
          "permissions": {
            "description": "Unlock this to enable the furnace upgrade options.",
            "perms": {
              "1": {
                "perms_list": {
                  "furnaceupgrades.use": "Furnace Upgarde"
                }
              },
              "2": {
                "perms_list": {
                  "cooking.instant": "Instant Cooking",
                  "cooking.free": "Free Cooking"
                }
              }
            }
          }

Check your lang file. If you generated it with the old text initially, it will show the old text until you update the lang file or delete it.

Works fine on my server.

I did check the lang file initially, it doesn't show up in there. I can't find descriptions for any of the build craft perks weirdly. 

Just delete the lang file and generate a new one

Also make sure your config isn't throwing an error on load.