Diagnosis
V2 time stamps have been deleted for the infosource v1.

System Response
This means that during the next data request (from BW) the system willnot be able to find the deleted time stamps and so in some cases olddata will be reselected.

Procedure
Ensure that the data belonging to the deleted time stamps has beenremoved from all of the data targets before a new data request isstarted. This is the only way of making sure that the data is notwritten to and added up in the data targets several times .