During gameplay, when I'm in a battle and after I go to the backpack or to switch to a different pokemon, the screen gets garbled up when I go back to the battle itself. Here is a screenshot to illustrate. If I win the battle without switching pokemon or using any items then I'm OK. Also, it fixes itself after the glitched battle, but only until the next time I use an item or switch. But you can't NOT do either of those things all the time! How can I fix this problem?