Situation:
When you have a class that appears in Student records when you look in the Class info > Class, that you see a class as dropped in Course workload dropped section, but when you looked in the Register the class is not there.
Solution:
1. Add that dropped class into the Register, then add the dropped date > SAVE
2. Edit the dropped class and delete it
Once that process is completed, it will disappear in the Course workload dropped section.