Withholding for third party vouchers

 Hello All,

I have a situation when I am creating Third party vouchers, I fill in all the necessary info for the third party voucher , click on the invoice information tab, click on Withholding link, I see all the withholding detail information in the grid for  that vendor.  I assume all the withholding information is there so I save the voucher and go back to withholding  and click on that link again but this time all that information is empty , no details.  It doesn't happen when we create Regular vouchers and save it. I have looked at the code behind VCHR_HDR_WRK