[Phanx]

Another option would be to simply make sure the name object exists before proceeding:

	hooksecurefunc('ActionButton_Update', function(self)
		local macroname = _G[self:GetName()..'Name']
		if name and (not C['general'].buttons.showMacronames) then
			macroname:SetAlpha(0)
		end
	end)

This would catch the ExtraActionButton, as well as any other (future) buttons Blizzard uses ActionButton_Update on that don't have name objects.