I’m getting a 404 error when I click on either the title link or “read more” in my portfolio entries. I’m just starting to create my own entries and have been using the dummy ones, and it’s happening on all of them. My portfolio page settings are to use “Portfolio” page, 3 columns, 12 items, and I’ve added some categories but am still using the dummy ones too. I also have it selected to open image in lightbox.
it happens links mess up when you’re replacing dummy content with new content. It’s better to start with a clean installation and build from there. It might also be an issue with your permalink settings and if you’ve changed them.
If you’re certain these didn’t cause your issue I can refer you to here and here.