Hello @hxh1455231465 ...
A short time ago, I answered a very similar question from another student. So, rather than repeating the text here, I will direct you to Why can't I see my courses?. I'm hoping that the answer I provided to Tom will also help to answer your question, too.
Please sing out if you have any questions about this...thanks!
This discussion post is outdated and has been archived. Please use the Community question forums and official documentation for the most current and accurate information.