I cannot seem to turn on the Fiscal Years option in charts where the date is in the rows.  I have tried modfying the "Sales over time" widget in the preloaded "Northind Sales" dashboard.

I tap on the date field in the Rows, then tap on the Fiscal Years slider (turns to green), then select the Initial Month. When I tap outside the field settings and then tap on the date field again the Fiscal Years has been turned off.

Does anyone else have this issue. or knows how to resolve the issue.