AVPlayerLooper not taking effect - objective-c

Question

In iOS 10, AVPlayerLooper was added to loop videos in an AVQueuePlayer. I've viewed the official Apple documentation, but it is not clear at all - on top of that, the sample project provided is only in swift. I want to know how to run AVPlayerLooper in objective-c. Here is the Apple Documentation for reference: https://developer.apple.com/reference/avfoundation/avplayerlooper?language=objc
My end goal is to use this as part of an SKVideoNode subclass. Here is the code for the subclass using the AVPlayerLooper:
#import "SDLoopingVideoNode.h"
#import <AVFoundation/AVFoundation.h>
#interface SDLoopingVideoNode()
#property AVQueuePlayer *avQueuePlayer;
#property AVPlayerLooper *playerLooper;
#end
#implementation SDLoopingVideoNode
-(instancetype)initWithPathToResource:(NSString *)path withFiletype: (NSString *)filetype
{
if(self == [super init])
{
NSString *resourcePath = [[NSBundle mainBundle] pathForResource:path ofType:filetype];
NSURL *videoURL = [NSURL fileURLWithPath:resourcePath];
AVAsset *videoAsset = [AVAsset assetWithURL:videoURL];
AVPlayerItem * videoItem = [AVPlayerItem playerItemWithAsset:videoAsset];
self.avQueuePlayer = [[AVQueuePlayer alloc] initWithItems:#[videoItem]];
self.playerLooper =[AVPlayerLooper playerLooperWithPlayer:self.avQueuePlayer templateItem:videoItem];
self = (SDLoopingVideoNode*)[[SKVideoNode alloc] initWithAVPlayer: self.avQueuePlayer];
return self;
}
return nil;
}
#end
And then to initialize the object, I use this code in the "didMoveToView" method:
SDLoopingVideoNode *videoNode = [[SDLoopingVideoNode alloc]initWithPathToResource:#"147406" withFiletype:#"mp4"];
[videoNode setSize:CGSizeMake(self.size.width, self.size.height)];
[videoNode setAnchorPoint:CGPointMake(0.5, 0.5)];
[videoNode setPosition:CGPointMake(0, 0)];
[self addChild:videoNode];
[videoNode play];