same problem https://wplms.io/support/forums/topic/urgent-courses-not-showing-up-in-course-page/#post-92881
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I added this to footer as suggested but problem is still there.
<!--email_off--> <!--/email_off-->
to disable it, I have added it in your footer.php but it is not displayed in the page source which means the page is cached. I have tried flushing out the cache but it is not working can you please consult your web host to clear your browser cache so that the changes we make are reflected on the front end.
Enable message to Instructor in Course Page" from wp-admin-> lms -> settings to resolve this quickly .
confirmed to be working
Let me know if we could close this topic.