Right. I placed all the custmesh files and the 'for all shinies v2' into my main directory and it seemed to work fine. I only started the game on a hunch thinking it would, the vixen corset was more "shiny" than usual, so I assumed it work and logged off. I'll play with it some more though.
That 's because this asm_pc file is created especially for usage with all the custmesh files at once. If you only install "true fit jeans" and "vixen corset" for example and then install "customize_item.asm_pc" from one of the "for all shinies..." folder with it, the game will crash eventually at certain points.
Basically the data of the custmesh files you 'll find in there are certain filesizes, shown in bytes, that have to match.
I know it 's a real pain that one always has to update that asm_pc file. But you can 't expect me to create an asm_pc file for every possible combination.
The real solutions would be that those modded files could be added to the game as new clothing, instead of replacing the old ones. But I haven 't got so far (yet). If someone already found the way how to do this, please let me know, I would be very grateful.