Read nameplate units directly instead of scanning by name

modules/afkcam.lua

@@ -59,7 +59,10 @@ pfUI:RegisterModule("afkcam", function ()
     if not this:IsVisible() then return end
     local info = _G.ChatTypeInfo[string.gsub(event,"CHAT_MSG_","")]
     if not info then return end
-    local class = GetUnitInfo(arg2 or "")
+    -- the engine name-queries a chat sender before the event fires, so the
+    -- sender's GUID (arg12) always resolves
+    local _, class
+    if arg12 and arg12 ~= "" then _, class = GetPlayerInfoByGUID(arg12) end
     local author, msg
     if class and class ~= UNKNOWN then
       local class_color = PFUI_CLASS_COLORS[class]:GenerateHexColorMarkup()