I posted this in the Wordpress discussion forum but have not got a response, so I thought I might try here. Hopefully I have posted this in the right category, if not please let me know.
I have two categories for posts and two pages to display these posts. One category works just fine, everything displays correctly (this is the first category I created), but the other category that I added after, doesn't display posts in single view when you click their title. It shows all of the posts in that category. Nothing changes except the URL. The URL displays correctly, but the single post view just doesn't work.
I've checked google and can't find anything like this problem. I have no idea how one category works and the other does not. As far as I can tell everything is done exactly the same between the two. I have the permalinks set to /%category%/%postname%/ if that matters. If I change it to /%postname%/ then the posts in the category that isn't working just won't come up at all.
I am using a child theme based off twentyeleven.
I am using a pageofposts template for the pages that display the post categories, a separate one for each but they are exactly the same, just different category names in the code.
I appreciate any help, and please let me know if you need more information.
Here is the page of the category that doesn't work, the one that does work is "Setup Sheets"