Advancement overlap in 1.12 release

Custom advancements are overlapping each other.
This should be fixed in Snapshot 17w18a. But it's still there.
Ive set the advancements on servers and it shows this.

skylineadvancements/story/root.json

{
  "criteria": {
    "elytra": {
      "trigger": "minecraft:player_killed_entity",
      "conditions": {
        "items": []
      }
    }
  },
  "display": {
    "show_toast": true,
    "background": "minecraft:textures/blocks/wool_colored_orange.png",
    "icon": {
      "item": "minecraft:emerald",
      "data": 0
    },
    "description": "Willkommen! Wir hoffen es gefällt dir hier. :)",
    "title": "Skyline-District",
    "announce_to_chat": false
  }
}

skylineadvancements/story/first_job.json

{
  "parent": "skylineadvancements:story/root",
  "criteria": {
    "elytra": {
      "trigger": "minecraft:impossible",
      "conditions": {
        "items": []
      }
    }
  },
  "display": {
    "show_toast": true,
    "icon": {
      "item": "minecraft:diamond_pickaxe",
      "data": 0
    },
    "description": "Jetzt erstmal an die Arbeit!",
    "title": "Mein erster Job!",
    "announce_to_chat": false
  }
}

I've just tested these advancements and to come to a conclusion, when I load another world on the server, the client won't display the advancements right. They are all overlapping each other.