How to animate each content layer with selected css animation with owlCarousel slide?

Here what I did, but I can't make it work properly.

HTML

<div class="owl-carousel owl-theme">
    <div class="slide-item-1">
        <div class="layer layer1">
            <div data-animate="animated fadeInLeft">
                <h1>I'm layer 1</h1>
            </div>
        </div>
        <div class="layer layer2">
            <div data-animate="animated fadeInLeft">
                <h2>I'm layer 2</h2>
            </div>  
        </div>
    </div>

    <div class="slide-item-2">
        <div class="layer layer1">
            <div data-animate="animated fadeInLeft">
                <h1>I'm layer 1</h1>
            </div>
        </div>
        <div class="layer layer2">
            <div data-animate="animated fadeInLeft">
                <h2>I'm layer 2</h2>
            </div>
        </div>
        <div class="layer layer3">
            <div data-animate="animated fadeInLeft">
                <h2>I'm layer 3</h2>
            </div>  
        </div>
    </div>
</div>

JavaScript

 jQuery(document).ready(function($) {
    $('.owl-carousel').owlCarousel({
        items:1,
        dots: true,
        nav: false,
        animateOut: 'fadeOutLeft',
        animateIn: 'fadeInRight',
        autoplay:true,
        onTranslated: animateSlide,
        onTranslate: removeAnimation
    });

    function removeAnimation() {
        var item = $(".owl-item .layer");
        item.removeClass(item.children().data('animate'));
    }

    function animateSlide() {
        var item = $(".owl-item.active .layer");
        item.addClass(item.children().data('animate'));
    }
});

Now I have this issues,

1. It shows content first and then animate, I mean contents don't come with animated, it comes first then animate.

2. First slide 'layer' DIV content don't animate content in first view but good after come back from other slides..

3. Last slide 'layer' DIV content animation works on first time view but next time don't work. What I can see is it add double animation or don't remove animation class after slide to another.

4. Middle slides are working fine without any problem.