Hello, I used switch toolbox and gimp to edit the texture for Zero Suit Samus's hair. After I inject the modified .nutexb and try to launch Zero Suit Samus the game loads forever. I tried doing it again but renaming the backup to a .nutexb but that didn't do anything. After injecting the nutexb file, extracting it again with crossarc, and than trying to open it with switch toolbox I get the error "Invalid magic! Expected XET but got." Please help me solve this problem! I really want to make mods for SSBU!
Files have a compressed size by default in the data.arc. I can easily guess you didn't compress your files with zstd. Unfortunately unless a miracle happens, you need to hex edit the file to mess with compression and get the right size. If you don't know how to do that, ask someone who has successfully or wait until SaltyNX comes out.
Also you may want to restore a backup of the data.arc since you may have unrecoverable damage that can't be fixed by injecting the vanilla file.