This article was created in response to a support issue logged with K2. The content may include typographical errors and may be revised at any time without notice This article is not considered official documentation for K2 software and is provided “as is” with no warranties.
Duplicated "SharePoint 2013" folders are displaying in K2 Management > Categories > Workflow > Steps. The same behavior can be seen in K2 Designer > All Items > Workflow > Steps.
Running the K2 Five Setup Manager under Configure options, will add an extra SharePoint 2013 Category under Workflow > Steps.
This is a known issue with K2 Five and it will be fixed in the K2 Five 5.1 release.