Request Set Run Option: Print Together

We have a request set that submits multiple concurrent requests and few reports. This request set had Run option "Print Together" checked. It used to work fine in Oracle Application 11.5.9. But after upgrade to Rel 12.1.3 when reports were converted into xml reports, we encountered some issue. Reports were not PDF but whole xml file was being displayed.

Gino found the root cause for this issue. Because of run option "Print together", xml report output was not available for publishing, so publishing failed but report completed normally.