You have to manually add new course completion activities.....it is a little of a hold your breath moment.
Do not select the Unlock.....button.
On the course completion conditions, there are three tabs. Select the Bulk edit activity completions tab.
On the course completion conditions, there are three tabs. Select the Bulk edit activity completions tab.
Only select the newly added activities. Select the Activity completion rule. such as, Student must view...
Select the Edit button.
Go back to the Course Activity Report and Course Completion Report to verify that the new activities were added as expected.