Symptoms

User Task not populating People Picker SharePoint 2010 Column.
 

Diagnoses

We have a K2 workflow with a User Task. On the User Form is a data field for a people/group as well as a SharePoint "People or Group" column.
When the data field is on the user form before the SharePoint column, the SharePoint column value is not saved back to the list when the user action's their task.

 

Resolution

The workaround it to place the SharePoint column before the data field.