I have a course with a forced Boost theme on Moodle 3.4 (the site theme is Adaptable). I hid a couple of topics but now, although they appear in the left menu, I can't see or reach the activities inside other than by activity ID, and the Edit button for the topic is nowhere to be found. Only the grayed topic title is displaying.
When I change the theme back to Adaptable by unforcing it, those hidden topics still don't appear in the course.
Any idea on how to address this?