When you browse to K2 Management > Workflow Server > Workflow, select your workflow and click on the Reports tab, the display area is empty.
- Ensure you have K2 Five (5.1) installed.
- Download the K2 Five (5.1) FP15 from K2 Partner and Customer Portal.
- Install the K2 Five (5.1) FP15 to apply the fix.
- It is recommended to clear the browser cache.