Students can see the rubric in assignments, but teachers can't (M3.0.1)

Hi all,

We are using Moodle 3.0.1. I set up an assignment with a rubric as grading method. Students are able to see the rubric when they select the assignment.

As a site admin I can also see the rubric. If I login as a pure teacher without having admin capability at all, I cannot see the rubric.

Did anybody else experience this? Can someone run a test with teacher capability only and set up an assignment with a rubric? What do you see as a teacher? What do students see?

Thanks for all considerations and advice. 

With kind regards,

Hartmut