isoSprite _isoPositionChanged is broken about phaser-plugin-isometric HOT 2 OPEN

            if(this._dx !== 0 || this._dy !== 0 || this._dx !== 0){
                this.sprite.isoX += this._dx;
                this.sprite.isoY += this._dy;
                this.sprite.isoZ += this._dz;
            }

...

        if (this.position.x !== this.prev.x || this.position.y !== this.prev.y || this.position.z !== this.prev.z){
            this.prev.x = this.position.x;
            this.prev.y = this.position.y;
            this.prev.z = this.position.z;
        }