No LWMA line in custom moving average indicator

 
Why can't I see a linear weighted moving average line when I load  the custom moving average indicator? The other three types of simple, EMA and smooth give lines but not the LWMA.
 
Ruptor:
Why can't I see a linear weighted moving average line when I load  the custom moving average indicator? The other three types of simple, EMA and smooth give lines but not the LWMA.
Which settings, symbol, timeframe ? How many bars on your chart ?
Reason: