You need to create a report that compares data to a reference data set. You create the report and activate the track data option. The report correctly indicates the changes in the data; however when…

Drilling outside the scope of analysis forces a new query to execute against the database, which replaces the stored reference data snapshot and disables the data tracking display because the baseline comparison data is lost.

Activating query drill mode also triggers a new database query on each drill action, which similarly resets the reference data snapshot and causes all data tracking indicators to disappear from the report.

Adding a report break is a formatting operation that reorganizes the visual grouping of data but does not trigger a new query or alter the reference snapshot used by data tracking.

Adding a chart is a report visualization change that does not affect the underlying data retrieval, the reference data snapshot, or the activation state of data tracking.