F110 issue only when I enter parameters in Free Selection

Hi,

When I run F110 for a particular vendor by giving the Vendor number, the document for which I want to make the payment is getting picked along with 100 other documents. To prevent all documents from being picked in the proposal, if I specify only the document number which I want in the Free Selection, the proposal does not contain any document. That is, the document which was picked along with other documents when I did the Proposal run without any parameters in "Free Selection" is also not getting picked up now in the Proposal created when I explicitly specify the document number in Free Selection.

Let me know the possible reason for this issue. I have used Free Selection number of times before in F110 but never faced this issue.

Rgds

Sandeep