Students cant see image on quiz

When creating a quiz in canvas that uses pictures or an images as part of the question. Some students do not see the image while others can. How do you make sure everyone sees the pictures? 

Assigning and Assignment to a few students

Is there a way to assign a non graded assignment (review answer key) to only a few students who get copies of review answers in their IEP? I want the review answers only to show up in those student's...