The Pending status means that there is an unresolved Tracker assigned to this Learner. All Trackers will need to be set to either Closed or Resolved in order to close it down. 

You can see how many unresolved Trackers are assigned to the Learner in the ILR tile. Please click on the unresolved tracker to edit it, and set the status to either Closed or Resolved. This will update the status of the ILR record.