Issue Description
When you select one feature in K2 Management > Features, more feature instances are displayed instead of just the selected feature.

Resolution
- Ensure you have K2 Five (5.1) installed.
- Download and install the K2 Five (5.1) November 2018 Cumulative Update from K2 Partner and Customer Portal.
- Download the K2 Five (5.1) November 2018 Cumulative Update FP11 from K2 Partner and Customer Portal.
- Install the K2 Five (5.1) November 2018 Cumulative Update FP11 to apply the fix.
- Refresh the browser cache.