Matrix report by fiscal quarter

Sugar on demand - Pro v9.0.1

Hi all 

In Accounts (Organisations), I have created a tick box field called - Community Group involved on the Network (PfE Target)

When this is ticked, a date field is visible - Community Group involvement start date

The Accounts (Organisations) records have another drop down field called – Region/Nation

I want to create a Matrix Report that counts the number of records by Region per Fiscal Quarter over the fiscal year

The report setup is:

Define Filter

Define group

Display Summaries

Sorry to ask, but is this a bug, or am i doing this wrong?

Kind regards john