When you click the “Delete All” button on the K2 Artefacts page in SharePoint, the artefacts are deleted from the K2 Artefacts page but are not deleted from the K2 Designer along with SharePoint SmartObjects and relevant categories.
- Ensure you have K2 4.7 installed.
- Download and Install the K2 4.7 March 2018 Cumulative Update from K2 Partner and Customer Portal.
- Get the K2 4.7 March 2018 Cumulative Update FP4 from Regional Support.
- Install the K2 4.7 March 2018 Cumulative Update FP4 to apply the fix.