Assignment keep not available, even though the activity restrictions are completed

Hello,

I have a problem, that an assignment keep not available for students, event though the students pass the activity restrictions.

As the activities, I have a quiz and an assignment. The quiz should be marked as completed and students should pass the quiz to access the assignment But event though the students completed these restrictions, the assignment is still not accessible and still grayed out.

If I delete the second restriction, that students should pass the quiz. Then, they can access the assignment.

I think, this is a Moodle bug. Can somebody have a look of it? thx

Cheers,

Nisa