H5P activity completion and criteria to start new aktivity

Hello,

I have a problem: I have two activities (Quiz (Question Set) A and B. Activity completion is set "show activity as completed when conditions are met" (conditins are: students must view and students must be graded)

Then I set the restriction for B as "student must finish and be graded for A. In my gradebook there are grades for A and A is marked as "done" but still B is not available. 

Can someone help?

Greetings