Russians in Battlegrounds?!

[Lybrial]

Hi,

im currently working on my nameplates and so I want to give some additional informations
on my nameplates when im in a battleground.

Im showing the class spec of enemies.

So at first im gathering class informations:

VALUES.Classes = {}
 
for classID = 1, MAX_CLASSES do
    local _, class = GetClassInfo(classID);
 
    VALUES.Classes[class] = {}
 
    for i = 1, GetNumSpecializationsForClassID(classID) do
        local specID, specName, _, iconID, role = GetSpecializationInfoForClassID(classID, i);
 
        VALUES.Classes[class][specName] = {
            specID = specID,
            role = role,
            iconID = iconID,
        }
    end
end

Second im building an array of current players in the battleground:

local players = {}
 
local function buildName(unit)
    local name, realm = UNITS:UnitName(unit);
 
    -- UnitName realm: The realm the specified unit is from.
    -- For "player" returns nil.
    -- For any other character on your own realm returns an empty string.
    -- This is as of 1.12.
 
    if (realm and (realm ~= "")) then
        name = name .. "-" .. realm;
    end
 
    return name;
end
 
local function deleteSpecs()
    TABLES:Wipe(players);
end
 
local function updateSpecs()
    local _, instanceType = GetInstanceInfo();
 
    if (instanceType == "pvp") then
        for i = 1, GetNumBattlefieldScores() do
            local name, _, _, _, _, _, _, _, class, _, _, _, _, _, _, specialization = GetBattlefieldScore(i);
 
            if (name and class and specialization) then
                players[name] = {
                    class = class;
                    specialization = specialization;
                }
            end
        end
    elseif (instanceType == "arena") then
        for i = 1, GetNumArenaOpponentSpecs() do
            local name = buildName(STRINGS:Format("arena%d", i));
 
            if (name and (name ~= UNKNOWN)) then
                local specID = GetArenaOpponentSpec(i);
                local _, specialization, _, _, _, class = GetSpecializationInfoByID(specID);
 
                if (class and specialization) then
                    players[name] = {
                        class = class;
                        specialization = specialization;
                    }
                end
            end
        end
    end
end
 
local frame = FRAMES:CreateFrame("Frame", nil, FRAMES.UIParent);
 
frame:SetScript("OnEvent", function(_, event)
    if (event == "PLAYER_ENTERING_WORLD") then
        deleteSpecs();
        updateSpecs();
    elseif ((event == "ARENA_OPPONENT_UPDATE") or (event == "UPDATE_BATTLEFIELD_SCORE")) then
        updateSpecs();
    end
end);
frame:RegisterEvent("UPDATE_BATTLEFIELD_SCORE");
frame:RegisterEvent("ARENA_OPPONENT_UPDATE");
frame:RegisterEvent("PLAYER_ENTERING_WORLD");

And on my nameplate update function im doing:

local function update(self)
    local element = self.Specialization;
 
    if (element.PreUpdate) then
        element:PreUpdate();
    end
 
    local _, instanceType = GetInstanceInfo();
 
    if (instanceType == "pvp" or instanceType == "arena") then
        local name = buildName(self.unit);
 
        if (players[name]) then
            local class = players[name].class;
            local specialization = players[name].specialization;
 
            element.Icon:SetTexture(VALUES.Classes[class][specialization].iconID);
            element.Icon:SetTexCoord(0.1, 0.9, 0.1, 0.9);
 
            element:Show();
        else
            element:Hide();
        end
    end
 
    if (element.PostUpdate) then
        return element:PostUpdate(self.unit);
    end
end

This works perfectly! For everybody except russian players. There are some rogue and demon hunter specs for which I get no results for. Is there anything special about some russian names, server names or spec names (except from the character set ofcourse)?