It's very interesting , I can't closed the POS session because of the unbalance entries. I found that because one POS order problem, in the order detail, I can see the payment but there is NOT any product on it, I don't know and forgot how to create it , but it's true.

So it sure not balance, have payment and without any products price, I try to return the order , but there is nothing to return because the order only have payment.  

And I go to account entries, no entries created for this session.

Anyone have this same problem?