Did you find any solution for this ?

Hello,

I think It was  sorted by the ascending order of the report ID.

What is easy way here is to duplicate the ​Invoices without Payment​  report and remove the first ​Invoices without Payment report from print.

Activate the developer mode. Go to Settings -> Technical -> Reporting -> Reports

There you can find the Invoices without Payment report. There is a smart button inside the form view to removing the report from print.

Make sure, all data from the 1st Invoices without Payment report is copied to the 2nd ​Invoices without Payment report while duplicating. Otherwise, do it manually.

Thanks & Regards

Avinash N K