The new sm64coopdx v1.0.4 include OUTDATED versions of Character Select and Extra Characters 
and we won't be able to update the mods until the next CoopDX update.

Drag the new Character Select v1.10 zip file and Extra Characters v7.0 to the game window or set the folders in CoopDX's AppData
to fix this. To find the AppData folder, go to Options < Misc < Open AppData in the game menu.

You can find the latest version of CS here:
https://github.com/Squishy6094/character-select-coop/releases/tag/v1.10