@Satyajit_Singh We found out the cause. It’s not really a bug, rather it was a rare case of transaction failure.
This is linked to your other bug report - UPI transaction showing two times
You tried to pay once but due to an intermittent issue, the first transaction failed. Hence no transaction ID was given to it. This is why it wasn’t categorized as well. The amount wasn’t debited for the first time. However, you’ve initiated the payment again and it was successful this time.
You will see 2 transactions because of this.