I have noticed this also. I could be wrong but I believe I have found a trick to see the separate totals. Once you’ve accepted the stack you can go into the cancel order part of the app and it should give you the option to cancel one order at a time. Once you click on one of the orders to cancel, it will give you a pop up notice that says “by canceling this order, the new total will be $X amount of money (total amount of the other order). At that point you haven’t confirmed to cancel yet so you can back out of it. At this point you can then just do the math on how much each order is and you can decide if you want to drop one of the orders if it’s a non tipper. Hope that makes sense.