General help

So, first issue: hidden from students...you say this is about F2F but it isn't--it is really about the interaction between course settings, section settings and activity settings, ultimately, I'd guess.  In course settings, you can choose if something hidden from students is actually invisible or just unavailable.  The section setting is what is making the item unavailable, which is okay but if you really want it to disappear, you should probably hide the activity as well. I'm not really sure what the second item is showing--but it does say the item is unavailable...

Second issue: it doesn't look like these images were taken from student view.  I'm fairly confident this is true because the Manage courses button appears for you.  There is no real student view from the Admin perspective in categories.  Switching to student in a course applies to that course...not everything.   Switching to student can be helpful but sometimes you need to BE a student to see how it totally works.  Do you have a student account?  Or a test user account that only has authenticated user permissions?  Try enrolling the student account and logging with it to see what happens for the actual student.