for GBPCHF, it only loads like a few days worth of PnF columns?:
Is this the issue where MT4 creates gaps in the data and there is nothing you can do about it?
It will do as much chart data as you have...
you may need to manually force MT4 to fetch more data from your broker by scrolling as far back as you can: best method is zoom out as afar as you can and hold down PageDown key...
I would not reccomend the history canter download, even though it is quicker.