Not able to edit the voucher when voucher is in recycle status

Hi All,
PeopleSoft: I have created a voucher and Voucher status is in Recyle,all the voucher client has uploaded excel upload,but some voucher are error status due to combo ,we have asked the user to correct the account,but user able to edit few voucher which are in Recycle status and few voucher not able to edit which are in recycle satus,Can any one let know why it is not editable.can do any back end update to make it editable.