Issues with Report Defintion after upgrade from Pega 7.3.0 to Pega 8.2.4
after the upgrade from Pega 7.3.0 to Pega 8.2.4, our report definitions with class joins are returning empty results when the option "Report on descendant class instances" is set to "Include all descendant classes". But if we change this to "Include Implementation class only" it works.
I want to understand why it is behaving like this? Why is the behavior different in Pega 8?