I have two scheduled payments on the first of the month that I have set up to take from a Pot ( called scheduled payments). The app 100% shows the payments as set up to take from this pot however two months in a row now it has taken the money out of my main account.
I have cancelled and recreated the payment + there is enough money in the pot.
You’ll get a warning that there aren’t enough funds to cover the upcoming debit(s), followed by a transaction decline if you don’t do something about it.