I have a problem with category links and permalinks. When I attempt to navigate to a category link on my site, I get a Page Not Found error. However, all other links to posts and pages work fine.
Interestingly, I have found that I also cannot change the permalinks setting to anything other than default. For some reason, when I select another permalink setting, it resets to the default setting when the page reloads. It even reports that my update to the permalink structure was successful. None of the links on the site convert to clean URLs.
I really don't care about using clean URLs in this case. I just need the category links to work properly.
Site is http://nccproduction.com. Upgraded to 2.3.2.