Hello support,
i try to load history data with following code
Period period =Period.createCustomPeriod(Unit.Week, 2);
long lastBarTime = history.getPreviousBarStart(period, history.getStartTimeOfCurrentBar(getInstrument(), period));
List<IBar> list = history.getBars(getInstrument(), period, OfferSide.BID, Filter.WEEKENDS, 10, lastBarTime, 0);
and take
Exception by history loading - com.dukascopy.charts.data.datacache.DataCacheException: Failed to load in-progress candle data in timeout period
What is wrong ?

Does the problem persist? If it does, please provide full example strategy which replicates the case.

Complete strategy is to big. This is the sample to reproduce error.
Same error i take if use any custom period. Instrument is not null.

package test;

import java.util.List;

import com.dukascopy.api.Filter;
import com.dukascopy.api.IAccount;
import com.dukascopy.api.IBar;
import com.dukascopy.api.IContext;
import com.dukascopy.api.IHistory;
import com.dukascopy.api.IMessage;
import com.dukascopy.api.IStrategy;
import com.dukascopy.api.ITick;
import com.dukascopy.api.Instrument;
import com.dukascopy.api.JFException;
import com.dukascopy.api.OfferSide;
import com.dukascopy.api.Period;
import com.dukascopy.api.Unit;

public class SampleStrategy implements IStrategy {
   private IHistory history = null;
   private Instrument instrument  = null; 

   @Override
   public void onStart(IContext context) throws JFException {
      history =context.getHistory();
      instrument = context.getLastActiveChart().getInstrument();
      List<IBar> historyBars  = doGetHistory();
                  //DO tms with list
      
   }
   
   private List<IBar> doGetHistory()  throws JFException{
      Period period =Period.createCustomPeriod(Unit.Week, 2);
      long lastBarTime = history.getPreviousBarStart(period, history.getStartTimeOfCurrentBar(getInstrument(), period));
      return history.getBars(getInstrument(), period, OfferSide.BID, Filter.WEEKENDS, 10, lastBarTime, 0);      
   }

   @Override
   public void onTick(Instrument instrument, ITick tick) throws JFException {
      // TODO Auto-generated method stub

   }

   @Override
   public void onBar(Instrument instrument, Period period, IBar askBar, IBar bidBar) throws JFException {
      // TODO Auto-generated method stub

   }

   @Override
   public void onMessage(IMessage message) throws JFException {
      // TODO Auto-generated method stub

   }

   @Override
   public void onAccount(IAccount account) throws JFException {
      // TODO Auto-generated method stub

   }

   @Override
   public void onStop() throws JFException {
      // TODO Auto-generated method stub

   }

   public Instrument getInstrument() {
      return instrument;
   }

   public void setInstrument(Instrument instrument) {
      this.instrument = instrument;
   }

}

Another question - how to take custom period form chart? Is it possible ? I have tried and take - null.

We could not reproduce this.
Try:

Thanks,
i have try but result it the same
18:45:15 com.dukascopy.charts.data.datacache.DataCacheException: Failed to load in-progress candle data in timeout period @ jforex.StrategyTST.onStart(StrategyTST.java:31)
Instrument - AUDUSD , time frame - 3 Days, DEMO account.

Do you get the same exception with GetCustomActiveChartPeriod.java? Does the problem persist after deleting your local cache?

Yes. I take same error.

Local cache was cleared before.

We can't replicate the case, the strategy for us works as expected.