Contractual Overdues; incorrect allocation when post maturity, has a positive and negative item

Contractual Overdues can create an incorrect allocation when post maturity, the symptom being the breakdown has both a positive and negative item. The positive item will be dated on the Maturity date with the Reference "Due on Maturity" and the negative item will be dated today with the Reference "Due since Maturity".

This occurred if there were more charges and payments since maturity, and the payments totalled more than the balance as at maturity.