Drill Through Issue in COGNOS 10.2 Report Studio

Hi friends,

Recently we Migrated our reports from the Cognos 8.4 to Cognos 10.2. The Drill throughs in the migrated reports which are working fine in cognos 8.4 is not working as expected in cognos 10.2

We have source report with tree prompt. We are using this tree prompt to dispaly the selected items in the chart.we are drilling through to a target report using a drill-through definition.In the target report we have an expression that would result in tree prompt.

In drill through definition we are passing parameter value to the target report. Well this worked fine in the 8.4 but in 10.2 target report is re prompting for the value

Thanks in advance friends