Rubric not displayed on assignments

In an assignment with a grading rubric, the rubric is not displayed before or after grading. On the website it's fine.

Steps to reproduce:

• Create an assignment
• Create a rubric and make it available
• All rubric options checked (so Allow users to preview rubric is included)
• Log in as student via website (it is displayed)
• Log in as student via app (it is not displayed)