Root Cause: In case of very long reports not all data can be loaded into the report dialog and are therefore truncated. This is now clearly indicated by a colored highlighted line in the report that reads: "The report was not completely saved to the database..
Update to a fix version listed below or a newer version if available.
Fix Status: Released
Component(s): AE Server and Initialdata
Automation Engine 12.1.0 - Available
Automation Engine 12.0.3 - Available
Use the Java UI.