I'm finding inconsistent behaviour with the Player Handbook, World Atlas, and World Encyclopedia categories: 1. When checkmarked to show as book on World Page in the editor, all Atlas and Encyclopedia links send me to 404 page (It looks like the link might be malformed). This was from everywhere, including the "View Category" link in the editor, and in both Firefox and Chrome. 2. Clicking the category links under World Codex now shows content in the adjacent columns, where articles load into a new page. Previously, category links worked like articles. Clicking the breakout button for these 3 categories still goes to 404, but works as expected for my custom categories.

Steps to Reproduce

1. Set Player Handbook, World Atlas, and/or World Encyclopedia categories to "Display this Category on the top of the World page using a Book-style cover image" 2. See all links to those categories go to 404 page 3. Turn off Book-style cover image, and see inconsistent link behaviour in the description.

Operating System

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