Diagnosis
When defining statistics, the number of columns needed to output a lineof the statistics was found to be larger than the number of columnsdefined as list format. The number of columns was therefore increasedto the required size.

Procedure
DO NOT set the number of columns for the list format back to a smallervalue. The report generator of the ABAP Query sets the number ofcolumns to the required size. In this case the number of columns shownin the "Title, Format" screen is not the same as the number of columnsof the generated report.