I have assignments set up in the form of Flex-books on the CK-12 app. I had a student click into the link but not complete the practice. Now she is saying that she cannot get back into the assignments, and they are showing completed. When I view the course as her, I see the completion notice but I am able to click on each assignment. I'm not sure if this is a Schoology issue or a CK-12 issue but I have a request out to them as well.