Hi there, I'm making a site for my company nowadays. I choose the blog for my website and everything was going fine. But suddenly, My posts are unable to included in the categories that I made. Some of my post was okay with it, but like after 3 posts, settings were not working. I tried every set ups, or the way how supporting center recommended to me. But now I can't even change the post that already have category tag. I don't know why new posts can't have category tags.... plz help me..!