AP created 1 check for 2 different employees garnishment

We automated garnishment process so that when we run payroll journal we create AP voucher and send that to AP side.  They then print checks and send them to payroll dept. for review and mail.  This time we have 2 different employees garnishment deductions with the same vendor.  We intended to create 2 separate checks and mail them separately to the same vendor address.  But instead AP issued one check for 2 employees deductions.  Where in e1 (PR or AP) we go and make sure AP create 2 separate checks?  Or is this functioning as designed?  Please advise.

Thanks,