Update - November 1, 2019 at 9:15 AM:
The issue reported below has been resolved. CMS services should be functioning normally.
myCourses, McGill's learning management system for online teaching and learning, is experiencing sync issues. Some instructors are not able to access the winter 2020 courses assigned to them. If you need to access your winter courses, please contact the IT Service Desk. We are currently looking into resolving the issue and we apologize for any inconvenience this may cause.