LoadMoreHistory doesn't work when indicator used in Bot

Hi,

I have a multi-currency indicator that works fine as an indicator.  It auto-loads history if there is not enough when you get the symbol bar data on initializing the indicator. If you scroll back the On Calculate will load more bar data as well. See the code below.  However, when I place the indicator into a Bot, loadmorehistory does not return any bars. It also seems the backtesting engine starts the indicators at an earlier date than the date range you select through the interface. is this an error by design or what?

        public override void Calculate(int index)
        {
            try
            {
                int p0 = -1;
                if (index < 0 || TimeFrame >= TimeFrame.Daily) return;

                //Load more currency bars when the instance symbol bars start before the other symbols    
                for (int i = 0; i < prdMS.Length; i++)
                {
                    while (Bars.OpenTimes[index] < prdMS[i].OpenTimes[0])
                    {
                        var loadedCount = prdMS[i].LoadMoreHistory();
                        SeriesStartDates[i] = prdMS[i].OpenTimes[0];
                        if (loadedCount==0)
                        {
                            Print (prdMS[i].SymbolName+" failed to load more history.");
                            break;
                        }
                        else
                        {
                            Print("{0} Loaded {1} bars on {2} Timeframe. {3} total bars.", prdMS[i].SymbolName, loadedCount, TimeFrame, prdMS[i].Count);
                        }
                    }
                }