Bank account linked to property but one transaction not pulling unit info

Linked a bank account to a property with history of different tenants. Able to link deposit transactions to each respective tenant. However, there seems to be a glitch with one transaction. It is linked to the property but the list of tenants to choose from to assign the deposit is not listed. When choosing the rental unit # that tenant is assigned, that transaction is not recognized nor recorded in the tenant’s transactions because it is not pulling the named tenant although it is the unit, thus creating an unreconciled balance. How do I correct this so that it is pulling the correction tenant to show up in its transactions.