SKVideoNode with AVPlayer is playing but not visible on iOS 9.0

Question

I have a problem with Xcode 7.0 (7A220) and iOS 9.0. I add a video (.mp4 or mov, both not working) with an AVPlayer and SKVideoNode. On the simulator with iOS 8.4 it's working fine, but on iOS 9.0 (also simulator) the video is not showing. I can hear the audio though.

The code in my GameScene (of class SKScene):

-(void)didMoveToView:(SKView *)view {

    NSURL *fileURL = [NSURL fileURLWithPath: [[NSBundle mainBundle] pathForResource:@"VideoName" ofType:@"mp4"]];
    _player = [AVPlayer playerWithURL: fileURL];

    _videoNode = [[SKVideoNode alloc] initWithAVPlayer:_player];
    _videoNode.size = CGSizeMake(200, 100);
    _videoNode.position = CGPointMake(200, 200);
    _videoNode.zPosition = 1000;

    [self addChild:_videoNode];

    _player.volume = 0.5;
    [_videoNode play];
}

In the UIViewController I have this:

- (void)viewDidLoad
{
    [super viewDidLoad];

    // Configure the view.
    SKView * skView = (SKView *)self.view;
    skView.showsFPS = YES;
    skView.showsNodeCount = YES;

    /* Sprite Kit applies additional optimizations to improve rendering performance */
    // I have set this to NO, but it doesn't help
    skView.ignoresSiblingOrder = NO;

    // Create and configure the scene.
    CGRect rect = [[UIScreen mainScreen] bounds];
    GameScene *videoScene = [[GameScene alloc] initWithSize:rect.size];
    videoScene.scaleMode = SKSceneScaleModeAspectFill;

    GameScene *scene = [GameScene unarchiveFromFile:@"GameScene"];
    scene.scaleMode = SKSceneScaleModeAspectFill;

    // Present the scene.
    [skView presentScene:videoScene];
}

So the app is not crashing, the video is playing (I can hear it), but the video is invisible on iOS 9 only. Does someone have an idea to fix it?