Why my MQL5 indicator is displaying one moving average instead of two? - buffer

Question

I took the code of VIDYA from the examples library of MQL5 and added a second moving average to it; basically, another VIDYA line.
The newly created code is compiling without errors or warnings but only one moving average (VIDYA) is being displayed on the chart instead of two. It seems I am missing something. Your help will be much appreciated!
#property copyright "2009-2020, MetaQuotes Software Corp."
#property link "http://www.mql5.com"
#property description "Double Variable Index Dynamic Average"
//--- indicator settings
#property indicator_chart_window
#property indicator_buffers 2
#property indicator_plots 2
#property indicator_type1 DRAW_LINE
#property indicator_color1 Navy
#property indicator_width1 3
#property indicator_label1 "VIDYA 1"
#property indicator_type2 DRAW_LINE
#property indicator_color2 Navy
#property indicator_width2 3
#property indicator_label2 "VIDYA 2"
#property indicator_applied_price PRICE_MEDIAN
//--- input parameters
input int InpPeriodCMO = 9; // Period CMO
input int InpPeriodEMA = 12; // Period EMA
input int InpShift = 0; // Indicator's shift
//--- indicator buffer
double VIDYA_Buffer_1[];
double VIDYA_Buffer_2[];
double ExtF; // smooth factor
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
void OnInit()
{
//--- indicator buffers mapping
SetIndexBuffer(0, VIDYA_Buffer_1, INDICATOR_DATA);
SetIndexBuffer(1, VIDYA_Buffer_2, INDICATOR_DATA);
//--- sets first bar from what index will be drawn
PlotIndexSetInteger(0, PLOT_DRAW_BEGIN, InpPeriodEMA+InpPeriodCMO-1);
PlotIndexSetInteger(1, PLOT_DRAW_BEGIN, InpPeriodEMA+InpPeriodCMO-1);
//--- sets indicator shift
PlotIndexSetInteger(0, PLOT_SHIFT, InpShift);
PlotIndexSetInteger(1, PLOT_SHIFT, InpShift);
//--- name for indicator label
string short_name = StringFormat("VIDYA(%d,%d)", InpPeriodCMO, InpPeriodEMA);
IndicatorSetString(INDICATOR_SHORTNAME,short_name);
PlotIndexSetString(0, PLOT_LABEL, short_name+"1");
PlotIndexSetString(1, PLOT_LABEL, short_name+"2");
//--- calculate smooth factor
ExtF = 2.0/(1.0+InpPeriodEMA);
}
//+------------------------------------------------------------------+
//| Variable Index Dynamic Average |
//+------------------------------------------------------------------+
int OnCalculate(const int rates_total,
const int prev_calculated,
const int begin,
const double &price[])
{
if(rates_total < InpPeriodEMA+InpPeriodCMO-1)
return(0);
//---
int i,start;
if(prev_calculated < InpPeriodEMA+InpPeriodCMO-1)
{
start = InpPeriodEMA+InpPeriodCMO-1;
for(i = 0; i<start; i++)
{
VIDYA_Buffer_1[i] = price[i];
VIDYA_Buffer_2[i] = price[i];
}
}
else
start = prev_calculated-1;
//--- main cycle
for(i = start; i<rates_total && !IsStopped(); i++)
{
double mul_CMO = MathAbs(CalculateCMO(i,InpPeriodCMO,price));
//--- calculate VIDYA 1 & 2
VIDYA_Buffer_1[i] = price[i]*ExtF*mul_CMO+VIDYA_Buffer_1[i-1]*(1-ExtF*mul_CMO)*1;
VIDYA_Buffer_2[i] = price[i]*ExtF*mul_CMO+VIDYA_Buffer_2[i-1]*(1-ExtF*mul_CMO)*2;
}
//--- OnCalculate done. Return new prev_calculated.
return(rates_total);
}
//+------------------------------------------------------------------+
//| Chande Momentum Oscillator |
//+------------------------------------------------------------------+
double CalculateCMO(int pos,const int period,const double &price[])
{
double res = 0.0;
double sum_up = 0.0,sum_down = 0.0;
//---
if(pos >= period && pos<ArraySize(price))
{
for(int i = 0; i<period; i++)
{
double diff = price[pos-i]-price[pos-i-1];
if(diff>0.0)
sum_up += diff;
else
sum_down += (-diff);
}
if(sum_up+sum_down != 0.0)
res = (sum_up-sum_down)/(sum_up+sum_down);
}
//---
return(res);
}