Is it possible to fix someone else's CC?

We would need to see the package to explain how to fix this issue, but it sounds like exceeded vertex group number.

copy a link where the package is shared and paste it here
If you cant find it, upload it on mediafire.com and paste here

to fix this file:
- export diffuse and all lods;
- open lod 0 in blender;
- select s4studio_mesh_1, then b__L_LoLid__, delete it with - button;
- do not re-use an old package. In s4s main menu click on CAS, in the search bar type in "noctis", select one swatch, Next, save in ts4's Mods folder. Then import all lods and a diffuse, makre other maps blank.


If you want to delete the shoes completely:
- switch to Edit mode, in Uv editor enable sync;
- in 3d view enable x-ray, click and drag to select the shoes somehow, then press Ctrl L to select the rest of them;
- not everything will be selected, so in uv editor select the remaining uvs as shown in the pic below;
- in 3d view press Delete and choose Faces, save;
- add Decimate modifier, reduce Ratio, stopping just before the mesh starts to change its shape. File - Save as, name it LOD 1. Reduce the radio further, save as LOD 2. Reduce until the mesh almost brakes, save as LOD 3;
- clone a tank top, import these blend files and diffuse there, then make other maps blank

Ah, right, i forgot about this, apologies. You would need to re-arrange uvs and re-bake textures, which isnt difficult normally, but would be in this case because uvs are very torn and there isnt much space to put them in. Heres an updated package

Unfortunately, i can no longer rebake them, since the original uv map was removed. So the only thing thats left is to recolor them
You can do it in photopea of another program
- using selection tools, select an area you want to recolor;
- create a new adjustment layer ( hue/saturation ), change values;
- alternatively, you can create a color fill layer and then change blending mode to Color;
- once done, File - Export - PNG