User has time logged and submitted (not yet approved) in Core for all the projects that have tasks allocated, but nothing shows in the Employee Allocation widget. Does the widget only show approved time in the Used column?
Both Employee Allocation and Staff Workload widgets show approved or unapproved time entries under the Used column. However, the time entry date has to fall between the Allocation Start and End dates for them to appear here. Check the Core Help for details.