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When EnableDrillDown and EnableGroupingSeparator is set to true drill-up is not working properly, since drill-down is woks fine. Note: Need to ensure and fix both flat and hierarchy data source.
Please refer the attached sample for reference.
Steps to Reproduce
Step1: Run the attached sample.
Step2: Drill-down the first treemap item.
Step3: Drill-up the same item. Note drill-up is not working.
NOTE: For flat data source, navigate to counter page and do the same process.