And yeh I'm on IPad, I know Apple had all those issues there for a while, and after many reinstalls and waiting it finally fixed itself. In the beginning I couldn't buy a chute or tank, it would just act as if I never clicked it, now it does the same thing with changing name, sensitivity, or trees, realistic terrain etc. I click save, and it just doesn't do anything. But I'm sure one day it will work itself out