FSA Fluid Enrollment Per Pay Period Deduction Amount

We are implementing the fluid enrollment pages and found that the FSA per pay period deduction amount is incorrect on the summary page.  We found in testing that if an employee has a mid-year event the per pay period amount on the FSA card on the summary page is calculating the annual pledge dived by the remaining unconfirmed paychecks in the year.  The per pay period amount is not taking into account the FSA balance that has already been deducted so far.

Here's an example, an employee has an FSA balance of $1,320, changes their annual pledge to $2,500 with 2 remaining unconfirmed paychecks in the year.  The expectation is the per pay period amount will be $590, but the card is showing $1,250.  Has anyone else found this issue?