Custom indicator for ATR and Bollinger not drawing

The lines are drawn on my platform

Thanks for the confirmation. Strange thing, could it be a version related problem ?

My MT is version 4.0 Build 840 (12 June 2015). And yours ?

Same

Here's how my chart looks. Indicator window just shows a flat line in grey :(   

Has anyone seen this strange behaviour before ?

The problem is your Buffer_VB.

If you just need it to show a value in the data window or nothing, don't fix it to 1.0

This means that with 4 or 5 digit symbols the other buffers are too close together and just appear as a single straight line. 

Instead of

      if(Buffer_ATR[shift] > Buffer_BB_main[shift])
      {
         Buffer_VB[shift] = 1.0;
      
      }

 do

      if(Buffer_ATR[shift] > Buffer_BB_main[shift])
         Buffer_VB[shift] = Buffer_ATR[shift];
      else
         Buffer_VB[shift] = EMPTY_VALUE;

You are totally right. It's the 1.0 value that is out of scale, making the ATR & BB look flat.

Fixed as per your suggestion and is working fine :)

 

Thanks so much for your help.