Profit/loss calculation in daily statement

I’ve noticed that if I have both long and short position in instrument, the current P/L for open posistions in the daily statement is calculated using the net size (long-short) and the average price and not the actual P/L for each position, which gives the wrong figure at the end.

This by no means causes any loss as the P/L amount for closed position is correct, but maybe the team would like to have a look at that to avoid confusion.