Course Completion not being triggered

Hi all!  We recently replaced an older file of a rise360 with an updated version in our LMS and it is no longer triggering a course completion for users who have previously completed the course.  The course we are having issues with has a triannual review and renewal.  Users must complete the updated version every three years.  I have searched high and low through the forums and tried all the suggestions I've seen that are similar to the problem I have to no avail.  Has anyone else experienced this or have suggestions on what might be going on and how to fix it?