JED - No usable overworld

{
  "dimensions": [
    {
      "dim": 0,
      "override": true,
      "disableteleportingto": true,
      "dimensiontype": {
        "id": 0,
        "name": "JED Overworld",
        "suffix": "_dim0",
        "keeploaded": true,
        "worldprovider": "WorldProviderSurfaceJED"
      },
      "worldinfo": {
        "generatorName": "flat",
        "generatorOptions": "3;minecraft:air;127;",
        "SpawnX": 256,
        "SpawnY": 64,
        "SpawnZ": 256,
        "DayTime": 6000,
        "GameRules": {
          "doDaylightCycle": "false"
        },
        "JED": {
          "CanRespawnHere": false,
          "RespawnDimension": -1
        }
      }
    },
    {
      "dim": -1,
      "override": true,
      "dimensiontype": {
        "id": -1,
        "name": "JED Nether",
        "suffix": "_dim-1",
        "keeploaded": false,
        "worldprovider": "WorldProviderHellJED"
      },
      "worldinfo": {
        "JED": {
          "CanRespawnHere": true
        }
      }
    },
    {
      "dim": 1,
      "override": true,
      "dimensiontype": {
        "id": 1,
        "name": "JED End",
        "suffix": "_dim1",
        "keeploaded": false,
        "worldprovider": "WorldProviderEndJED"
      },
      "worldinfo": {
        "JED": {
          "CanRespawnHere": false,
          "RespawnDimension": -1
        }
      }
    }
  ]
}