Btw if you have missing mods for character cards it´s only belonging to the game´s mods and NOT to the Optional Sideloader Modpack Studio - this modpack is only stuff for StudioNEO.
2 weeks ago I would have agreed. Lately, I found out, if you use the full version including studio, there are a few items (accessories?) in maker, that are coming from mods, that sideloader lists as studio mods (see the sena mod I linked at the latest chars). Ofc, you can easily find those and get them when needed instead of the full pack.
That's one of the reasons, I have 2 versions of the game: a full game and one without studio mods.