404 retrieving character profile on anniversary

I have an issue retrieving an anniversary character profile from the api.

/data/wow/guild/thunderstrike/dah-boo/roster?namespace=profile-classicann-eu&locale=en_US

The guild api roster returns the character

{
      "character": {
        "key": {
          "href": "https://eu.api.blizzard.com/profile/wow/character/thunderstrike/hadlock?namespace=profile-classicann-eu"
        },
        "name": "Hadlock",
        "id": 76167669,
        "realm": {
          "key": {
            "href": "https://eu.api.blizzard.com/data/wow/realm/6409?namespace=dynamic-classicann-eu"
          },
          "id": 6409,
          "slug": "thunderstrike"
        },
        "level": 70,
        "playable_class": {
          "key": {
            "href": "https://eu.api.blizzard.com/data/wow/playable-class/9?namespace=static-2.5.5_65000-classicann-eu"
          },
          "id": 9
        },
        "playable_race": {
          "key": {
            "href": "https://eu.api.blizzard.com/data/wow/playable-race/2?namespace=static-2.5.5_65000-classicann-eu"
          },
          "id": 2
        },
        "faction": {
          "type": "HORDE"
        }
      },
      "rank": 4
    },

But, the character profile summary returns a 404

/profile/wow/character/thunderstrike/hadlock?namespace=profile-classicann-eu&locale=en_US

{
“code”: 404,
“type”: “BLZWEBAPI00000404”,
“detail”: “Not Found”
}

This character has been renamed in the past, nevertheless, this works for Øverløad who was renamed as well. I can’t explain why Hadlock returns a 404