Samsung Galaxy S10+
One UI 3.1
Just got the game, and after setting up my button layout and playing for an hour or so, I saved the game and exited. Later, when I reloaded the game, my buttons were all over the place (in fact the B button was nowhere to be seen). I exited the game, and reloaded, and all the buttons were back, but in weird spots. So, I moved them back to where I had them and played some more and saved. The next time I loaded the game, the same thing happened.