In the past, PKHeX has worked more than fine for me in terms of opening the Gen III files, but as of late hasn't been responding when I open them.
I have been getting the same message no matter which games files I try to open: "Attempted to load an unsupported file type/size. This could be caused by loading a different generation file on an unsupported generation or the file is corrupt."
I know my file isn't corrupted, and I know I'm opening in the right generation settings in PKHeX. Most queries I see about this error on the forum have been for more recent games, and I know the file works in-game and has in the past. I play the copy on a flashcart but have been transferring the save to my computer and opening it from there and the error occurs no matter which game save file I try to use. Is there something I'm missing?
Pokemon Sapphire.sav