Touch doesen´t work on Unity Remote, why?

If I run my game in Unity itself everything works fine, even if I run it on Unity Remote 4 but if I build it on my Android device the touch doesn´t work. The Start Screen works fine but I´ve included Buttons there. In the GameScene I use a self created TouchInput which doesn´t react if i click it (the script works, I´ve tested it). The problem is probably that the script is attached to the touch Area and calling the functions of the player which is the parent of the touchArea because if I attach the TouchScript directly to my player it works.... but why isn´t it working if I call Player mehtods from other scripts?