When you sync your Task list to Outlook and mark a task as complete on the Web interface in it does not show completed in Outlook, and vice versa. Also when you mark an item as complete in one version of Outlook, say 2007, and you go to a 2013 Outlook client it does the same.
It will show the Progress as 100% but Outlook or the Web interface do mark the task complete which means you cannot see only Active Tasks.
We are running SM 12 but it has been this way with previous versions as well.
Is there something in the SM configuration or Outlook that can changed to make completed Tasks sync correctly?