This is written along the bottom of the Dashboard screen
"Timing of data updates can cause short-term variances between the dashboard and reports section."
I only have two loans in arrears and the dashboard is 100% correct at the present time. The more loans you have is arrears will lessen the likelihood of the amount in arrears being correct at any one point in time. But in the end what does it matter what the amount is anyway, right or wrong.