Seems the game can't read the Chinese specific characters in the file names for the mod, this could 100% be a system specific issue on linux, but even with all Chinese locales enabled it still fails to load the files from the mod folder.
For anyone running into issues with the character creator and items not showing up properly or the game itself failing to load on a new game, you'll have to go to your "workshop/content/108600/3439877834" folder and rename any file/folder using Chinese characters to something different, the name itself doesn't seem to matter as long as it's in en_US characters.