I can no longer turn notifications on and off regarding individual posts from my android phone. It occurred suddenly and I kept trying to turn a post notification on. The help section gave instructions that do not work. I have to go to my computer to do that. How helpful is that feature if one cannot turn notifications on and off from mobile devices? It becomes annoying especially after posting a comment on a public page and you get 100+ notifications that you can't turn off? More problems 2/22