https://support.microsoft.com/en-us/topic/description-of-the-sharepoint-designer-2013-hotfix-package-spdcore-x-none-msp-april-8-2014-a4c16d3b-df7e-cfe1-c9c8-f074edd7ced0
Description of the SharePoint Designer 2013 hotfix package (Spdcore-x-none.msp): April 8, 2014 -...
Describes the issue that is resolved in the SharePoint Designer 2013 hotfix package that is dated April 8, 2014.