Symptoms

User cannot see the work item in work list when work item is allocated to that user.

Diagnoses

Error was related to a dropped connections between K2 and SharePoint.

When reviewing the logs previously, the majority if not all the errors were relating to an error when trying to contact SharePoint.

Resolution

1.) Make sure that the group providers exist in workspace. - Open workspace and navigate to "Management" --"Management Console" - Expand: "User Managers" -- "SP" --- "Group Providers". - In there you should see the group provider in question.

2.) Next, we need to make sure that it is valid, by navigating to the URL.

3.) And finally, if the group provider is valid, make sure that the K2Service Account has site collection Administrator permissions on the site collection.