Bug / latency of indicators when debugging with visual studio 2017 / 2019 in backtesting

Hello,

I have encountered a strange behavior with the exponential moving average and I have seen that with other indicators :

(LastValue / Last(0) / .Result) are returning a value that apparently comes from nowhere in backtesting mode ONLY

-> the same code returns correct values when bot is running on a market

I have set up a very basic bot

using System;
using System.Linq;
using cAlgo.API;
using cAlgo.API.Indicators;
using cAlgo.API.Internals;
using cAlgo.Indicators;

namespace cAlgo.Robots
{
    [Robot(TimeZone = TimeZones.UTC, AccessRights = AccessRights.None)]
    public class DebugLast : Robot
    {

        ExponentialMovingAverage EMA;
        protected override void OnStart()
        {
            EMA = Indicators.ExponentialMovingAverage(MarketSeries.Close, 10);
        }

        protected override void OnBar()
        {
        }

        protected override void OnTick()
        {
            var a = EMA.Result.LastValue;
            var b = EMA.Result;
            var c = EMA.Result.Last(0);
            var d = EMA.Result.Last(1);
            var e = EMA.Result.Last(2);
           
        }

        protected override void OnStop()
        {
            // Put your deinitialization logic here
        }
    }
}

When placing a breakpoint on the closing bracket of OnTick, this is what happens :

=> Value of a,b,c are the same but does not correspond to what we see on the chart.

In fact the chart shows Last(1) : 1.106777 rounded to 1.10678

And even after the breakpoint, 1.10676357489... will not be present in last(1) or last(2) or on the chart, as we could expect.

Again,this is only happening in backtesting.

BTW, for these captures, I am using EURUSD, m1, 07/11/2019 - 09/12/2019, but the same thing happens with other timeframes

Did I do anything wrong or is this a bug ?

Regards :-)