Fourier Transform Indicator is not updated with incoimng new bars

Hello,

I need some help with running Fourier Transform indicator  in cBot  ( https://ctrader.com/algos/indicators/show/1971 ) . The problem is that the indicator is executed only one time on the beginning. Later on each new bar indicator values are not updated. I tried to force re-calculation of indicator calling Calculate() but it does not work.

Below code for problem replication, I will be appreciated for any advice.

Consider to tune Period value to be lower than the number of bars loaded by bot. With H1 it was around 119.

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

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

        [Parameter()]
        public DataSeries SourceSeries { get; set; }

        [Parameter(DefaultValue = 1, MinValue = 0)]
        public int Volume { get; set; }

        [Parameter("Period", DefaultValue = 100)]
        public int Npast { get; set; }

        [Parameter("Projection", DefaultValue = 10)]
        public int Nfut { get; set; }

        [Parameter("N° Harmonics", DefaultValue = 15)]
        public int Nharm { get; set; }

        [Parameter("Tolerance in Hz", DefaultValue = 1E-05)]
        public double FreqTOL { get; set; }

        [Parameter("Show Starting and Ending Points", DefaultValue = true)]
        public bool points { get; set; }

        private const string label = "NEW FT Sandbox";
        private FourierTransform ft;

        protected override void OnStart()
        {
            Print("initialization: ", Npast, " ", Nfut, " ", Nharm, " ", FreqTOL, " ", SourceSeries,
            " ", points);
            ft = Indicators.GetIndicator<FourierTransform>(Npast, Nfut, Nharm, FreqTOL, SourceSeries, points);
        }

        protected override void OnBar()
        {
            for (int i = 0; i < 200; i++)
            {
                //ft.Calculate(i);
                Print(i, " >> ", ft.fit[i], " # ", ft.proj[i], " # ", SourceSeries.Last(i));
                //ft.fit[i] = 0;
            }

        }

    }
}