Data should be grouped by a dynamic range of months included in the data set, rather than exclusively the last 12 months.
When Date parameters are grouped by month in Reporting 2.0, the range of dates shown should be inclusive of all data in the set, rather than the last 12 months.
My use case is that I am building a report of upcoming renewals by CSM. When I group the data by Renewal Date, the grouping shows May 2018 to 2019, when obviously my renewals are all in the future. Adding the grouping causes all renewals outside of the current month to disappear, which sometimes is the entire data set.