If you already had the previous version of Muramasa Mei (cosplaying as her), I advise that you remove the v1 of the outfit from your overrides. V2 does not conflict but v1 is just wasted space now.

CIV versions of her outfit overrides are now available here: https://mega.nz/folder/w9g2HQTQ#ngoCkma5BM3a4y6J9Onynw