I'm a little new to this, so I might use some incorrect terms, and for that, I apologize. I am using the .pk8 files uploaded by theSLAYER for Pokemon Go Transfers.
I was trying to edit the save of a Shiny Groudon. I changed was OT, I wanted it to say my name. It was still legal. However, when I change the ball type to Premier ball, it becomes illegal and says "Invalid: Unable to match encounter from Origin Game".
The problem is that you shouldn't have been able to get a Shiny Groudon from Pokemon Go in anything other than a Premier ball, so why is it only legal with other balls?
Thank you for the help. I have attached a few screenshots.