We had you guys do a customization a while back such that assignments would display an explanation/answer to students only after they submit that assignment. I was provided with the following code, but it no longer works. I was hoping for an update/fix:
In the above code change the first line
add_filter('wplms_assignments_metabox','custom_explantion');
to
add_filter('wplms_wplms-assignment_metabox','custom_explantion');
Let me know if this helps.