So I was playing Emerald with mGBA because someone heavily recommended it, and wanted to trade a Machoke with myself to evolve. I opened the second game with the same .sav and successfully traded, but as I got to the point where the game automatically saves, my main window froze with a black screen and the second one kept saving. Moments later, I got an error screen saying that it couldn't save, and then I was sent to title screen. Second game just had that "Connection error" black screen and I closed it. Right after I got to the title screen with my main window, I decided to open the game and