Scroll rect is invisible on Android device

In Unity is everything works (Scroll rect with animation and buttons). But when I build it and running on Android device (Samsung GT-P5110, Android 4.2.2 ). This Scroll rect with childs (sprites like buttons, black mask,..) are invisible on my android device. But if I tap on a place, where I know there are a buttons, it is normal works. It is just invisible. But another buttons on Canvas in UI layers are OK. I think it is doing after I upgrade Unity from Unity 2018.2.6f1 to Unity 2018.3.6f1 Before in another project it was works. This is new project but only with another new sprites.