First, try replacing all of their accessories with the same item (ring icon in the character maker). Character cards save everything applied to the character, including any modded accessories and clothes. BepInEx compares the ones in the Mods folder and the ones from the actual character metadata and, if the versions don't match, puts up a warning about the mod being missing.So I got to triggere happy on getting cards from debooru, now I'm missing a bunch of mods and I'm wondering how to get them, any tips?
If that doesn't work, you would have to find the individual mods because at that point they ARE missing. This I cannot help with aside from suggesting running the updater in Initsetting.exe, the individual mods are extremely hard to find if the updater won't get them.