Create Accounting in AP

Hi

We are currently in R.12.1.2. 

One of the user in AP having an issue. When she submits the "Create Accounting" process program as a Conc. request, it is getting submitted for AP.  the parameter p_accounting_id is getting value 222.

When we wanted to select the value "Payment" in parameter "Process Category", it is not showing any values of AP, but showing values of AR.

Even when we tried to process "Create Accounting" from Payments form, nothing is happening. Payment accounting remains "Unprocessed"

Another user in the same AP department does not have this issue & she is able to "Create Accounting" for AP normally.