This is very annoying right now and I have to leave a feedback here. Firstly I'm appreciate the new custom function of the control pad on touch screens. However, it's extremely annoying that every time you change the default size and location of the buttons. In the recent update, the default size and location of the touch screen buttons were changed again and it is very very hard to control on a 12.9 inch iPad pro. Although you can adjust them right now, it won't remember your setting when you quit the app. Every time I open the app and I need spent five minutes on adjust the button sizes and locations because it's almost impossible to play the game with the new default setting of the touch screen buttons. I will consider it's a critical bug that the app won't save your setting on the custom touch screen buttons. 

Btw, I also suggest if I can adjust the four direction buttons on the left side independently in size and locations just like I can do it for the rise and fall buttons on the right side.