I'm having trouble doing a drill across in Birst when there is more than one parameter. In my case I have "division" and "year" on a capital equipment report. The "division" drill works, but the "year" does not. It just loads the default. I think my expression that holds the year value needs to be named "YearPrompt" to match the target filter, but whenever I try to create and expression called "YearPrompt" it appends a number to the end. I don't want to change the filter on the target report to match the year prompt with the appended numbers because that report is already in prod and working. I've attached some screen shots that might help.
Target report filter setup
Starting Summary Report
Drill Across Setup
Result of Drill