[amibroker] 3-minute values incorrect in 1-minute chart

["ezbentley" <ezbentley@xxxxxxxxx>]

I am trying to extract the HIGH and LOW of the 3-minute bar at 9AM and plot two horizontal lines in 1-minute chart as reference levels. The values should not update until 9AM next day. However, the code below does not work, and the values change as I scroll the charts left and right. Can anyone help?

TimeRangeRef = TimeNum() == 090000;

// Obtain values from 3-minute time frame
TimeFrameSet(in1Minute * 3);
RangeHigh = ValueWhen(TimeRangeRef, H);
RangeLow = ValueWhen(TimeRangeRef, L);
TimeFrameRestore();

// Extract values for use in 1-minute chart
Long_price = TimeFrameExpand(RangeHigh, in1Minute * 3);
Short_price = TimeFrameExpand(RangeLow, in1Minute * 3);

Plot(Long_price, "Long" + _PARAM_VALUES(), ParamColor("Color Long", Colorcycle), ParamStyle("Style"));
Plot(Short_price, "Short" + _PARAM_VALUES(), ParamColor("Color Short", Colorcycle), ParamStyle("Style"));



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