JSQMessagesViewController Not showing Bubble Image in Chat

my project in objective-c use JSQMessagesViewController for firebase chat, but bubble images not comes with messages. JSQMessagesViewController and Firbase integrated via Pods.

Please help me.

Create method initialise the color for sender and receiver like the code below :

  - (JSQMessagesBubbleImage *) setupOutgoingBubble {
    JSQMessagesBubbleImageFactory *bubbleImageFactory = [[JSQMessagesBubbleImageFactory alloc] init];
    JSQMessagesBubbleImage * imgBubble = [bubbleImageFactory outgoingMessagesBubbleImageWithColor:[UIColor blueColor]];//jsq_messageBubbleBlueColor return imgBubble;
    return imgBubble;
}

- (JSQMessagesBubbleImage *) setupIncomingBubble {
    JSQMessagesBubbleImageFactory *bubbleImageFactory = [[JSQMessagesBubbleImageFactory alloc] init];
    JSQMessagesBubbleImage * imgBubble = [bubbleImageFactory outgoingMessagesBubbleImageWithColor:[UIColor greenColor]];//jsq_messageBubbleBlueColor return imgBubble;
    return imgBubble;
}




- (void)setupBubbleColors {
    self.incomingBubbleImageData = [self setupIncomingBubble];
    self.outgoingBubbleImageData = [self setupOutgoingBubble];
}

And call above method in viewDidLoad like below

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
    [self setupBubbleColors];

}

And id JSQMessageBubbleImageDataSource delegate return appropriate image like below

- (id<JSQMessageBubbleImageDataSource>)collectionView:(JSQMessagesCollectionView *)collectionView
             messageBubbleImageDataForItemAtIndexPath:(NSIndexPath *)indexPath {
    Message *message = [_messages objectAtIndex:indexPath.row];
    NSLog(@"%@", message.type);
    if(message.isOwnMessageValue) {
        return self.outgoingBubbleImageData;
    }
    else return self.incomingBubbleImageData;
}

The output will be like below