I have a shiny Gholdengo thats legal already but whenever i change the TID and SID of the Pokémon it becomes not legal anymore with the error, "unable to match encounter from origin game". I'm not sure why this is, any help would be appreciated thanks
I have uploaded the file here if you need to have a look, Im trying to change the TID and SID to my new save files Trainer details. Same name.
1000 ★ - Gholdengo - 9EABEA35599F - Copy.pk9