Pie Order Delay Due to Order Type

Iā€™ve noticed a bug when placing pie orders. . The issue occurs when one stock is taking longer to process then the others in the list, e.g. AIM listed orders. If the stock isnā€™t purchasd, it locks up the rest of the pie order; the ā€˜investingā€™ action stops, rather than move on to other stocks that could otherwise go through straight away. Pie orders seem to only want to invest in a particular order, rather than attempt to action all investments.