I have Team Members who are logging into forms via a participant license and are able to see both "Assigned" and "Available" tasks under "Team Tasks".  However they are not able to see any tasks under "Completed" even though Team Managers see 30 Completed.  I was unable to find anywhere in documentation where Team Members are not permitted to see Completed Tasks.  But can anyone confirm if Team Members are or are not permitted to see Completed tasks?  

Here is what Team Members see:

Here is what the Team Managers see: