volgens Tim Hunt.
This is a bit of a guess, but perhaps somehow all your courses got set to use the scorm coures format during the Moodle upgrade. (This should not have happened!)
Then, when you go to a course, Moodle detects there is no SCORM package in the course, and so redirects you to the page where you can add one.
Can you check in mdl_course table, and see what the course format is set to for each course.?
If the values there seem wrong, you should probably file a bug in the Moodle Tracker.