Issue with unapplied payments

Hi All,

In student financials, I found out that for some students have unapplied payments in their accounts for a particular Item-type.

I changed the charge priority list (formed a new priority list with the charges item types that were not adjusted yet) for that item type and ran the Apply Payment process for those particular  students.

I ran the process with "Reset ID" unchecked and next time with it checked. But the amount is still unapplied.

Please suggest.

Thank you

Aayush