They haven't been working in the worldbuilder since the recent patch. I'm attempting to update a custom map mod I made to work with the new expansion. After looking at one of the updated base game maps, I changed the ruleset in the worldbuilder to RULESET_EXPANSION_1 which enabled the Rise and Fall civs and resources to appear on the map. However, all of the old DLC civs still won't show up in the worldbuilder. Reinstalling them didn't work, and I'm not using any other mods. They won't even appear when I open a default map, like the Earth map. Both DLC and expansion civs still work in-game though.