Error Message :
The Automation Engine (AE) sends empty Reports in cases where no Joblog exists on the SAP side.
Root Cause: Behavior was introduced with Output Handling feature, where a directory tab for the reports was introduced. The directory is available before the job has ended hence during creation of the directory the system does't know if it will stay empty.
Use the Agent Log (also attachable) to determine the real cause for the empty Report.
An empty report shows that something went wrong on SAP side.