Playable Specialization API: Brewmaster returns 404

Playable Specializations Index api (/data/wow/playable-specialization/index) returns list of the all available specs:

{
  "_links": {
    "self": {
      "href": "https://us.api.blizzard.com/data/wow/playable-specialization/?namespace=static-10.2.7_54366-us"
    }
  },
  "character_specializations": [
    {
      "key": {
        "href": "https://us.api.blizzard.com/data/wow/playable-specialization/263?namespace=static-10.2.7_54366-us"
      },
      "name": "Enhancement",
      "id": 263
    },
    {
      "key": {
        "href": "https://us.api.blizzard.com/data/wow/playable-specialization/270?namespace=static-10.2.7_54366-us"
      },
      "name": "Mistweaver",
      "id": 270
    },
    {
      "key": {
        "href": "https://us.api.blizzard.com/data/wow/playable-specialization/66?namespace=static-10.2.7_54366-us"
      },
      "name": "Protection",
      "id": 66
    },
    {
      "key": {
        "href": "https://us.api.blizzard.com/data/wow/playable-specialization/255?namespace=static-10.2.7_54366-us"
      },
      "name": "Survival",
      "id": 255
    },
    {
      "key": {
        "href": "https://us.api.blizzard.com/data/wow/playable-specialization/256?namespace=static-10.2.7_54366-us"
      },
      "name": "Discipline",
      "id": 256
    },
    {
      "key": {
        "href": "https://us.api.blizzard.com/data/wow/playable-specialization/268?namespace=static-10.2.7_54366-us"
      },
      "name": "Brewmaster",
      "id": 268
    },
    {
      "key": {
        "href": "https://us.api.blizzard.com/data/wow/playable-specialization/72?namespace=static-10.2.7_54366-us"
      },
      "name": "Fury",
      "id": 72
    },
    {
      "key": {
        "href": "https://us.api.blizzard.com/data/wow/playable-specialization/252?namespace=static-10.2.7_54366-us"
      },
      "name": "Unholy",
      "id": 252
    },
    {
      "key": {
        "href": "https://us.api.blizzard.com/data/wow/playable-specialization/259?namespace=static-10.2.7_54366-us"
      },
      "name": "Assassination",
      "id": 259
    },
    {
      "key": {
        "href": "https://us.api.blizzard.com/data/wow/playable-specialization/264?namespace=static-10.2.7_54366-us"
      },
      "name": "Restoration",
      "id": 264
    },
    {
      "key": {
        "href": "https://us.api.blizzard.com/data/wow/playable-specialization/64?namespace=static-10.2.7_54366-us"
      },
      "name": "Frost",
      "id": 64
    },
    {
      "key": {
        "href": "https://us.api.blizzard.com/data/wow/playable-specialization/62?namespace=static-10.2.7_54366-us"
      },
      "name": "Arcane",
      "id": 62
    },
    {
      "key": {
        "href": "https://us.api.blizzard.com/data/wow/playable-specialization/65?namespace=static-10.2.7_54366-us"
      },
      "name": "Holy",
      "id": 65
    },
    {
      "key": {
        "href": "https://us.api.blizzard.com/data/wow/playable-specialization/70?namespace=static-10.2.7_54366-us"
      },
      "name": "Retribution",
      "id": 70
    },
    {
      "key": {
        "href": "https://us.api.blizzard.com/data/wow/playable-specialization/71?namespace=static-10.2.7_54366-us"
      },
      "name": "Arms",
      "id": 71
    },
    {
      "key": {
        "href": "https://us.api.blizzard.com/data/wow/playable-specialization/73?namespace=static-10.2.7_54366-us"
      },
      "name": "Protection",
      "id": 73
    },
    {
      "key": {
        "href": "https://us.api.blizzard.com/data/wow/playable-specialization/253?namespace=static-10.2.7_54366-us"
      },
      "name": "Beast Mastery",
      "id": 253
    },
    {
      "key": {
        "href": "https://us.api.blizzard.com/data/wow/playable-specialization/254?namespace=static-10.2.7_54366-us"
      },
      "name": "Marksmanship",
      "id": 254
    },
    {
      "key": {
        "href": "https://us.api.blizzard.com/data/wow/playable-specialization/258?namespace=static-10.2.7_54366-us"
      },
      "name": "Shadow",
      "id": 258
    },
    {
      "key": {
        "href": "https://us.api.blizzard.com/data/wow/playable-specialization/261?namespace=static-10.2.7_54366-us"
      },
      "name": "Subtlety",
      "id": 261
    },
    {
      "key": {
        "href": "https://us.api.blizzard.com/data/wow/playable-specialization/103?namespace=static-10.2.7_54366-us"
      },
      "name": "Feral",
      "id": 103
    },
    {
      "key": {
        "href": "https://us.api.blizzard.com/data/wow/playable-specialization/104?namespace=static-10.2.7_54366-us"
      },
      "name": "Guardian",
      "id": 104
    },
    {
      "key": {
        "href": "https://us.api.blizzard.com/data/wow/playable-specialization/105?namespace=static-10.2.7_54366-us"
      },
      "name": "Restoration",
      "id": 105
    },
    {
      "key": {
        "href": "https://us.api.blizzard.com/data/wow/playable-specialization/267?namespace=static-10.2.7_54366-us"
      },
      "name": "Destruction",
      "id": 267
    },
    {
      "key": {
        "href": "https://us.api.blizzard.com/data/wow/playable-specialization/257?namespace=static-10.2.7_54366-us"
      },
      "name": "Holy",
      "id": 257
    },
    {
      "key": {
        "href": "https://us.api.blizzard.com/data/wow/playable-specialization/63?namespace=static-10.2.7_54366-us"
      },
      "name": "Fire",
      "id": 63
    },
    {
      "key": {
        "href": "https://us.api.blizzard.com/data/wow/playable-specialization/250?namespace=static-10.2.7_54366-us"
      },
      "name": "Blood",
      "id": 250
    },
    {
      "key": {
        "href": "https://us.api.blizzard.com/data/wow/playable-specialization/251?namespace=static-10.2.7_54366-us"
      },
      "name": "Frost",
      "id": 251
    },
    {
      "key": {
        "href": "https://us.api.blizzard.com/data/wow/playable-specialization/260?namespace=static-10.2.7_54366-us"
      },
      "name": "Outlaw",
      "id": 260
    },
    {
      "key": {
        "href": "https://us.api.blizzard.com/data/wow/playable-specialization/262?namespace=static-10.2.7_54366-us"
      },
      "name": "Elemental",
      "id": 262
    },
    {
      "key": {
        "href": "https://us.api.blizzard.com/data/wow/playable-specialization/265?namespace=static-10.2.7_54366-us"
      },
      "name": "Affliction",
      "id": 265
    },
    {
      "key": {
        "href": "https://us.api.blizzard.com/data/wow/playable-specialization/266?namespace=static-10.2.7_54366-us"
      },
      "name": "Demonology",
      "id": 266
    },
    {
      "key": {
        "href": "https://us.api.blizzard.com/data/wow/playable-specialization/269?namespace=static-10.2.7_54366-us"
      },
      "name": "Windwalker",
      "id": 269
    },
    {
      "key": {
        "href": "https://us.api.blizzard.com/data/wow/playable-specialization/102?namespace=static-10.2.7_54366-us"
      },
      "name": "Balance",
      "id": 102
    },
    {
      "key": {
        "href": "https://us.api.blizzard.com/data/wow/playable-specialization/577?namespace=static-10.2.7_54366-us"
      },
      "name": "Havoc",
      "id": 577
    },
    {
      "key": {
        "href": "https://us.api.blizzard.com/data/wow/playable-specialization/581?namespace=static-10.2.7_54366-us"
      },
      "name": "Vengeance",
      "id": 581
    },
    {
      "key": {
        "href": "https://us.api.blizzard.com/data/wow/playable-specialization/1467?namespace=static-10.2.7_54366-us"
      },
      "name": "Devastation",
      "id": 1467
    },
    {
      "key": {
        "href": "https://us.api.blizzard.com/data/wow/playable-specialization/1468?namespace=static-10.2.7_54366-us"
      },
      "name": "Preservation",
      "id": 1468
    },
    {
      "key": {
        "href": "https://us.api.blizzard.com/data/wow/playable-specialization/1473?namespace=static-10.2.7_54366-us"
      },
      "name": "Augmentation",
      "id": 1473
    }
  ],
  "pet_specializations": [
    {
      "key": {
        "href": "https://us.api.blizzard.com/data/wow/playable-specialization/74?namespace=static-10.2.7_54366-us"
      },
      "name": "Ferocity",
      "id": 74
    },
    {
      "key": {
        "href": "https://us.api.blizzard.com/data/wow/playable-specialization/81?namespace=static-10.2.7_54366-us"
      },
      "name": "Tenacity",
      "id": 81
    },
    {
      "key": {
        "href": "https://us.api.blizzard.com/data/wow/playable-specialization/79?namespace=static-10.2.7_54366-us"
      },
      "name": "Cunning",
      "id": 79
    }
  ]
}

Once you query Brewmaster with the Playable Specialization API (/data/wow/playable-specialization/{specId}) with it using:

region: us
specId: 268
namespace: static-us
locale: en_US

it returns a 404. It’s also the same in Game Data Api Documentation api tester.

also Arcane (62) is bugged.