After some tests on other phones, it seems like the Lets go animation doesnt always appear. It could be caused by lag of the phone. The animation is triggered by a float increasing at each passage in the render loop. once a certain number is reached, the animation doesn't trigger anymore. If the game lag and doesn't show anything until a time the timer already reached, the animation won't trigger.
After some tests on other phones, it seems like the Lets go animation doesnt always appear. It could be caused by lag of the phone. The animation is triggered by a float increasing at each passage in the render loop. once a certain number is reached, the animation doesn't trigger anymore. If the game lag and doesn't show anything until a time the timer already reached, the animation won't trigger.