BlueTracker

I’m using the API to check the professions of all of my alts and I’ve noticed that for a few of the them are returning the name for the classic part of the profession as blank. Appreciate that may be a confusing explanation so I’ll show an example.
/profile/wow/character/turalyon/tocho/professions
/profile/wow/character/ravencrest/zaffogue/professions
Both alts have the same professions and I have tested dropping and relearning both professions too. The first one returns:

"tiers": [
  {
    "skill_points": 1,
    "max_skill_points": 300,
    "tier": {
      "name": "",
      "id": 2572
    }

And the second returns:

"tiers": [
  {
    "skill_points": 1,
    "max_skill_points": 300,
    "tier": {
      "name": "Mining",
      "id": 2572
    }

I have no idea why it doesn’t show a name but the only thing I suspect it may be is that there’s some interaction with horde and alliance. The first alt is horde and the second alliance. After checking more of my alts the issue seems to be that horde shows the ‘classic’ section of a profession with no name. Other expansions in each profession show the name correctly for both factions. Not a huge issue but just found it interesting that some were shown on the API with a blank name.