Hi there

I am trying to load at least 200,000 bars of data for a number of instruments by opening an MT4 chart and pressing 'Home' until it stops scrolling back.  I do this on all timeframes and then load the EA Studio Data Export script to get the data into json.  This works on some instruments, however many will only go back a year or sometimes less.  Is there any trick to getting more data to load?  I have already set the max number of bars in History and Chart to well over 200,000 so this shouldn't be the problem. 

As an example, on US30 I can only go back to 24 June 2016 on a H1 timeframe, but can go back to 7 August 2008 on D1.  M1 only goes back to 24 October 2017.

Thanks in advance.