Board Thread:Support Requests - Getting Technical/@comment-3279282-20190824165224/@comment-26447726-20190824192738

Switch functions are case-sensitive. In the infobox, you typed the condition that if it's Arche (2014), the category will appear. It didn't appear in Un deux because you typed in ARCHE (2014).

tl;dr, you need to change your infobox code to: