[Dawn]

Thanks, figured it out when you updated your layout a couple of days ago. Not quite sure why it didn't work before, but works fine now.

		local arenaprep = {}
		for i = 1, 5 do
			arenaprep[i] = CreateFrame("Frame", "oUF_Ghost_ArenaPrep"..i, UIParent)
			arenaprep[i]:SetAllPoints(_G["oUF_Arena"..i])

			arenaprep[i].Health = CreateFrame("StatusBar", nil, arenaprep[i])
			arenaprep[i].Health:SetAllPoints()
			arenaprep[i].Health:SetStatusBarTexture(cfg.HPtex)

			arenaprep[i].Spec = SetFontStringAP(arenaprep[i].Health, cfg.RaidFont, 9)
			arenaprep[i].Spec:SetPoint("CENTER")

			arenaprep[i].FrameBackdrop = CreateFrame("Frame", nil, arenaprep[i])
			arenaprep[i].FrameBackdrop:SetFrameLevel(arenaprep[i]:GetFrameLevel() - 1)
			arenaprep[i].FrameBackdrop:SetPoint("TOPLEFT", -1,1)
			arenaprep[i].FrameBackdrop:SetPoint("BOTTOMRIGHT", 1,-1)
			arenaprep[i].FrameBackdrop:SetFrameStrata("MEDIUM")
			arenaprep[i].FrameBackdrop:SetBackdrop(backdrop)
			arenaprep[i].FrameBackdrop:SetBackdropColor(0, 0, 0, 0)
			arenaprep[i].FrameBackdrop:SetBackdropBorderColor(0, 0, 0)

			arenaprep[i]:Hide()
		end

		local arenaprepupdate = CreateFrame("Frame", nil, UIParent)
		arenaprepupdate:RegisterEvent("PLAYER_LOGIN")
		arenaprepupdate:RegisterEvent("PLAYER_ENTERING_WORLD")
		arenaprepupdate:RegisterEvent("ARENA_OPPONENT_UPDATE")
		arenaprepupdate:RegisterEvent("ARENA_PREP_OPPONENT_SPECIALIZATIONS")
		arenaprepupdate:SetScript("OnEvent", function(self, event)
			if event == "PLAYER_LOGIN" then
				for i = 1, 5 do
					arenaprep[i]:SetAllPoints(_G["oUF_Arena"..i])
				end
			elseif event == "ARENA_OPPONENT_UPDATE" then
				for i = 1, 5 do
					arenaprep[i]:Hide()
				end
			else
				local numOpps = GetNumArenaOpponentSpecs()

				if numOpps > 0 then
					for i = 1, 5 do
						local frame = arenaprep[i]

						if i <= numOpps then
							local opponentSpec = GetArenaOpponentSpec(i)
							local _, spec, class = nil, "UNKNOWN", "UNKNOWN"

							if opponentSpec and opponentSpec > 0 then
								_, spec, _, _, _, _, class = GetSpecializationInfoByID(opponentSpec)
							end

							frame.Health:SetStatusBarColor(0.17, 0.17, 0.24)

							if class and spec then
								local color = RAID_CLASS_COLORS[class]

								if color then
									frame.Spec:SetFormattedText("|cff%02x%02x%02x%s|r", color.r * 255, color.g * 255, color.b * 255, LOCALIZED_CLASS_NAMES_MALE[class].."  -  "..spec)
								else
									frame.Spec:SetText(spec.."  -  "..LOCALIZED_CLASS_NAMES_MALE[class])
								end

								frame:Show()
							end
						else
							frame:Hide()
						end
					end
				else
					for i = 1, 5 do
						arenaprep[i]:Hide()
					end
				end
			end
		end)