When you sell products, the selected products will be added to the ProductOrderListPanel thats ok but when you click on the OrdersListPanel before you finish the purchase you will end the purchase without finish the transaction. The products will disappear without to be solded.
suggestion: disable OrdersListPanel during purchase to avoid mistakes or ..
Current order handling was missing.
Now current order appears in red in the orders list
selecting another orders makes the orders list blink and still shows current order
re-test and give me feedback there if we need to improve/change something
fixed is ok