spine动画播放是有内存问题么

Creator 2.x
#1

var node = this.node.getChildByName(“node”);
var spImg = node.getComponent(sp.Skeleton);
// spImg.setAnimation(0, “a1”, true);

    var self = this;
    var end = function(data,ff,yy) {
        if (data.animation.name == "a3") {
            
        }else if (data.animation.name == "a2") {
            //spImg.addAnimation(0, "a1", true,0);
        }else if (data.animation.name == "a1") {
                      
        }                                       
    }  
    spImg.setCompleteListener(end);

    if (this._attackTimeId > 0) {
        clearInterval(this._attackTimeId);
        this._attackTimeId = 0;
    }

    this._attackTimeId = setInterval(function() {   
        spImg.setAnimation(0, "a2", false);
        spImg.addAnimation(0, "a1", true,0);
    }, 500);
#2

一个动画这样播放， 内存一直在增长