why give more background of this bug,
the buggy version is formalms 2.4.4,
in previous versions there are no errors of this type,
The grade books do not list the tests inserted in the courses, these tests are uploaded from previous versions of formalms.
Another detail is in the grade book, I can generate an activity, but this activity is not related to the course test
If you know of a file that was changed from version 2.4.3 to 2.4.4 with the note book theme I would be grateful if you can give me that information
Concerning your other question, the activity: yes, that is normal. Activities have never been related to tests. They are... activities.