We create Canvas Quizzes in our Team Sandbox (Team created Course to build our Curriculum and then copy to each teacher's Course).  We Copy those Quizzes into our Official Canvas Course for the students.  The images do not transfer.  We had no issues with this last year.  This is a new issue this year.  We are creating and editing our Canvas Quizzes the exact same way as we did before and it worked then.  It is causing us to Create the Quiz, Copy it into our Canvas Courses, and Edit each question that has a picture and add the picture to the Quiz in our Canvas Course.