Custom indicator is not responsive in cBot backtest

Hello everyone, I am having a problem for some days now and I don't really know what to do about it.
I have written a cTrader Custom Indicator that has two outputs:

[Output("Nearest Long Level")]
public IndicatorDataSeries NearestLongLevelOutput { get; set; }
        
[Output("Nearest Short Level")]
public IndicatorDataSeries NearestShortLevelOutput { get; set; }

All good for now, in the Calculate() function of the indicator I update these two values on each bar:

double NearestLongLevel = NearestLongLevels.Count() > 0 ? NearestLongLevels.Max() : (Bars.LowPrices[index] - 1000);
double NearestShortLevel = NearestShortLevels.Count() > 0 ? NearestShortLevels.Min() : (Bars.HighPrices[index] + 1000);


NearestLongLevelOutput[index] = NearestLongLevel;
NearestShortLevelOutput[index] = NearestShortLevel;

When I try to use this indicator in a cBot in the backtest the Indicator is not responsive. Meaning it calculates level only when the backtest starts but then it stops updating values with each candle forming.

How can I resolve this?

Thanks