Back button not working in drill down report within Dashlet/Dashboard

I want to have back button in drill down report within dashboard but I could not make it work as expected. The reports are created in jasper studio and I have a dashboard with many dashlets (each containing reports). Some of the dashlet report have drill down hyper link to go through sub report. The drill down hyperlink works perfectly. However, when I am in child report and click back button from there I get The report is empty error message instead of getting parent report loaded. The back link is working correctly, if the reports are not within dashboard. 

Is there anything that I am missing or back button does not work within dashboards?

Any help/guidance is highly appreciable.

Thanks