I love this game but sometimes it doesn't work properly,so please fix the issue

I am a fanatic of trains or subways simulators, since the day i've knowed of subtransit and tryed on other phone i just falled in love (but don't played because the specs of the phone in his time are worst) In the day a day i can say (for me) is absolutly gold in simulator categorie, the details of stations or interior of the trains (yup, only have two and one line for ride) it's awesome, the sound and ambient too, it's the first time i've payed for the full access and try the other train that the game have, i have to mention the liberty to control the train if you want are possible, unlocking with the player level more buttons or major liberty to drive the train.