ios obj-с button is not visible on iPhone 8 Plus : Started to test my game on various devices. Every device works well except iPhone 8 Plus. On any other device and the Simulator (even simulated iPhone 8 Plus) the button is visible, but on iPhone 8 Plus it's not. I don't have a clue why this is happening.

1st pic shows Simulator 8 Plus screen, 2nd pic shows device screen. (They have different languages though but that's doesn't matter, I tried both.) 

Thanks in advance for your help.

Here's the code:

    proceedButton = [[SelectionButton alloc] initWithFrame:CGRectMake([[UIScreen mainScreen] bounds].size.width / 2.0 - 60.00, [[ScreenSize sharedSize] yValue] + 10.0 + [[ScreenSize sharedSize] gameFieldSize], 120.0, [[ScreenSize sharedSize] opButtonSize]) andText:NSLocalizedString(@"DONEKey", @"Done")];
    [proceedButton addTarget:self action:@selector(createPlayer) forControlEvents:UIControlEventTouchUpInside];
    [proceedButton addTarget:self action:@selector(changePathColor:) forControlEvents:UIControlEventTouchDown];
    [self.view addSubview:proceedButton];

[![On Simulator][1]][1]


[![On device][2]][2]


  [1]: https://i.stack.imgur.com/jGzQv.png
  [2]: https://i.stack.imgur.com/4LdGJ.jpg