Android 6.0+
It wasnt moving for a second and i pressed the "faster" button and that happens.
(restart game, backup save)
At the second time, same happens but i waited and it moves (i almost pressed the "faster" button.) and it works normally as it should.
(Its a first time bug, i tried to do it but nothing happened.[idk if its true..?])
f i wasnt paying attention. im using the latest build.