Hi, New to jasper studio so any help is appreciated. Here is the problem I am facing: I have a master report that uses datasource with a group to display information on a specific group that contains users. I have created a subreport using different datasource, new report, that contains details of the user information. I followed the subreport creation documentation available on the web site where a parameter is specified in te subreport query. I am able to preview the subreport and information looks OK however when I run the master report subreport shows blank. Any ideas what could be and issue or how can I debug this?