APP- cheque printing

Hi, experts, I am running the APP and would like to print the cheques thorugh APP. Entire configuration is done, while I run the proposal and entry is also getting posted, but at the time of cheque printng only 1 spool reuqest is getting generated. That is if ther are two vendors, whom I am paying, entry is getting posted for both the vendors but spool for cheque print is geting generated for one vendor only.

What could be the issue?

Please advise

Shailesh

Regards