so i found out on my currently using phone (OPPO F1S) that if your storage is full, simpleplanes starts acting wierdly, first things first. you can go to the level, but after doing once, you can no longer go into the game, nor try to exit. if you tap the (Play button) after playing once, it displays (Loading level) then you stay in the designer, all while being able to swipe and look around, you cant exit either. press that button, and nothing happens. if you try to restart, sometimes it goes back to normal, or displays (Jundroo) before going all black. so yeah.