Payment Predictor is applying payments to invoices with amounts more than the payment amt when custo

Payment Predictor is over-paying, i.e., the sum of Pending Item Amount is greater than the Payment amout, when more than one customer have the same REMIT_FROM_CUST_ID. We are using a method with the following algorithms:

Step 1. (Any....) BEKMATCH - a custom algorithm (copy of #BALANCE) to match a payment with the customer's running total amount for all open items. The Payment is applied only if it matches one of the customer's running totals (in Due Date order) otherwise the payment is ignored and moves to the next step.
Step 2. (Any....) #COMBO - delivered algorithm
Step 3. (Any...) Create Worksheet