Links to modules inside site home or course with guest access don't work

Moodle setup Create a course with guest access. Add a link to this course somewhere (e.g. in a section description). Create at least 1 supported activity in the front page (site home). Add a link to frontpage (course/view.php?id=1) and to the activity in it somewhere (e.g. in a section description). Testing Login in the app as a student and go to course search. Search the course with guest access and go to its course contents. Check that you can see the contents. Now go to the place where you added the link to the course and click it. Check that you are redirected to the course contents and you can see them. Now click in the links to front page and to the activity in it. Check that both things are successfully opened.