Posted 6 July 2020, 1:01 am ESTHi,
When using FlexPivot I have had issues with Top N not returning the number of results requested even when there are more than N returned in respect of the filters applied.
I have attached screenshots of your sample 'Custom C1FlexPivotPage' showing an initial set of filtered results with 12 entries.
After adding a Top N filter of 10 only 8 of the original 12 results are shown.
Is this behaviour by design?