My candle stick chart does not display its candles correctly. What is the problem?

I’ve made a candle stick chart.
It is displayed correctly on data of 1 to 23 minute in time series.
But for data above 23 minute in time series, it is not displayed correctly.
I attach a screen shot.
I’ve looked through all the data on chart with debugging, the data are all correct.
But the candles of the chart is not consistent to the data.
For the data below 23 minute in time series, it is all right.
I could not find the problem from my code.
The following is a part of my code for setting data on the chart.
private void setChartData(SmChartData chart_data) {
try {
if (chart_data == null)
return;

        chartType = chart_data.chartType;
        chartCycle = chart_data.cycle;


        final IRange visibleRange = surface.getXAxes().get(0).getVisibleRange();

        if (getSeriesType() == SmSeriesType.CandleStick || getSeriesType() == SmSeriesType.Ohlc) {
            if (ohlcDataSeries != null) {
                ohlcDataSeries.clear();
                ohlcDataSeries.append(chart_data.getDate(), chart_data.getOpen(), chart_data.getHigh(), chart_data.getLow(), chart_data.getClose());
                visibleRange.setMinMaxDouble(0, ohlcDataSeries.getCount() - 1);


            }
        } else {
            if (xyDataSeries != null) {
                xyDataSeries.clear();
                xyDataSeries.append(chart_data.getDate(), chart_data.getClose());
                visibleRange.setMinMaxDouble(0, xyDataSeries.getCount() - 1);
            }
        }

        // 주문의 위치를 다시 찾아 준다.
        refreshOrderAnnotation();
    } catch (Exception e) {
        String msg = e.getMessage();
    }
}

What is the problem?
Please let me know why It is not display its candles correctly for some time series values.
Thank you very much.