When you want to transfer all of your funds and press the "use all" button, it does not include the fee that the users needs to pay to the network. But at the moment the users can still press approve in metamask. This will lead to a failed transaction. But the Boba gateway will show you a green indication that the transaction was succesfully submitted. This needs a quick fix, because the users still has to pay for the failed transaction. And they have no clue what just happend, because the gateway shows that the transaction was sumbbited correctly.