The Apprentice Items filter works for me. You say none of the Temporary Filters work. This is more that just an Apprentice Filter problem isn’t it? I suppose that “nothing happens” means the temporary filter leaves the output identical to when no filter is applied.
Do the normal (non temporary) filters work?
What happens when you refresh your browser and try again the Apprentice Items filter?
Can you check the console and copy paste what you find there? Instructions on how to open the console are here .