When Canvas classes that had been available to students suddenly disappear, one of two things is usually happening.
1) The college has released several announcements. Those announcements push the course cards down further on the screen - often requiring scrolling to see them. Once you have read an announcement, you can close it by clicking the X in the upper right corner of the announcement. NOTE of Caution: Once you close an announcement, you will not have access to it again, so be sure you have the information from it that you may need. Alternatively, you can just scroll down to find the course cards you need to access.
2) During the 2nd week of the quarter, Enrollment Services begins to drop students for non-payment of tuition or those who have not attended a class. When students are dropped, they are removed from their Canvas course shells. If this has happened to you, please contact Admissions (admissions@wwcc.edu) and leave your phone number, name, and what classes have disappeared. Someone from Admissions will get back to you shortly. Once you have resolved the issue, you will be added back to your course.