rozmazana platforma,split graphics

I created a simple game in which you move a square to the right without stopping and just jump and everything was fine until I transferred it to the phone, it turned out that during the camera movement everything that does not move with it, that is, all except the player , it delicately splits, smears, I don't know how to name it, not much enough that at first I wasn't sure if it was for sure, but now I'm sure and I don't even know what to name it or how to go about it. during the tests on the computer, everything was of high quality, there was no question of any splits, it looks like two frames fell apart and were superimposed on each other and one of them is a shadow of the other, when the camera does not move everything is as it should , help !,I created a simple game in which you move a square to the right without stopping and just jump and everything was fine until I transferred it to the phone, it turned out that during the camera movement everything that does not move with it, that is, all except the player , it delicately splits, smears, I don't know how to name it, not much enough that at first I wasn't sure if it was for sure, but now I'm sure and I don't even know what to name it or how to go about it. during the tests on the computer, everything was of high quality, there was no question of any splits, it looks like two frames fell apart and were superimposed on each other and one of them is a shadow of the other, when the camera does not move everything is as it should , help ! (sorry for the mistakes, English is not my forte and I'm already desperate: P)