In the latest modpack, the author of Sailor layered cardigan mod have slightly changed the shape of the sleeves. It has better looks, but unfortunately, the texture shifted a bit from previous version, hence they need fix. The cards listed bellow affected by this, so if you want the fix, get them here:
They'll need AccessoryClothesV1.0 plugin by DeathWeasel too. Basically, it allows to port clothing into accessory slot.
Also, I'll put some links you might need:
HF Patch by ManlyMarco, to update all mods and plugins easily. Highly recommended instead of manually update the mods and plugins manually.
kkmanager by ManlyMarco, to update the modpack.
KK-Plugins-Compendium by Frostation, repository for list of plugins you might need.
My mega folder, cards, outfits, etc.