In the seller hub, in items awaiting payment the 'total' column is blank. The subtotal is there and correct, but the total is blank. 

This is particularly annoying as my overseas trade customers like to buy a number of items over different days , and I regularly send them invoices. Now I can't see how much postage I charged them and have to recalculate from scratch everytime they add another item.

Again its happening on 100% of the items in the seller hub, so just look at that for an example