intent 'public' is true.  I'm wondering if it confuses the issues here.  First, units are public/private.  subsections/sections are released by date.  Students wouldn't have taken homework on something that wasn't public and released.  

Is this really saying that if your unpublish the subsection or make the unit private after students complete assignments, it will be removed from Progress page.  If so, are all grades automatically recalculated?  What about if the assignment is re-publsihed?