上拉刷新后滚动区域卡住

<!--下拉刷新容器-->
<div id="Movies-scroll-box" class="mui-content mui-scroll-wrapper">
<div class="mui-scroll">
<!--数据列表-->
<ul id="movies" class="mui-table-view mui-table-view-chevron media-box">
<li class="mui-table-view-cell mui-media" v-for="item in movies">
<a href="javascript:;">
<img class="mui-pull-left" :src="item.imgs">
<div class="mui-media-body">
<h2>{{item.title}}</h2>
<p><label class="meia-type">{{item.genres}}</label>&nbsp;&nbsp;
<label v-if="item.rating>0" class="media-grade">{{item.rating}}分</label>
<label v-else class="media-grade">暂无评分</label>
</p>
<p class="mui-ellipsis">导演：<label class="media-dy">{{item.directors}}</label></p>
<p class="mui-ellipsis">主演：<label class="media-zy">{{item.casts}}</label></p>
</div>
</a>
</li>
</ul>
</div>
</div>

JS部分
mui.init({
pullRefresh: {
container: '#Movies-scroll-box',
down: {
style:'circle',
callback: pulldownRefresh
},
up: {
contentrefresh: '正在加载...',
callback: pullupRefresh
}
}
});
//初始化滚动区域
mui('#Movies-scroll-box').scroll({
indicators: false, //是否显示滚动条
});

        //获取数据  
        mui.ajax({  
            type:'get',  
            url:'',  
            dataType:'jsonp',  
            success:function(data){  
                var data=JSON.parse(data)  
                var moviesdata=ResData(data.subjects)  
                //console.log(moviesdata)  
                mediaData.movies=moviesdata;  
            }  
        })  

        //下拉刷新  
        function pulldownRefresh(){  
            //获取电影  
            mui.ajax({  
                type:'get',  
                url:'',  
                data:{  
                    start:0,  
                    count:20  
                },  
                dataType:'jsonp',  
                success:function(data){  
                    //清空现在的数组  
                    mediaData.movies.splice(0,mediaData.movies.length);  
                    var data=JSON.parse(data)  
                    var moviesdata=ResData(data.subjects)  
                    //console.log(moviesdata)  
                    mediaData.movies=mediaData.movies.concat(moviesdata);  
                    //结束下拉刷新  
                    mui('#Movies-scroll-box').pullRefresh().endPulldownToRefresh()  
                }  
            })  
        }  

        //上拉加载  
        function pullupRefresh(){  
            //获取电影  
            mui.ajax({  
                type:'get',  
                url:'',  
                data:{  
                    start:mediaData.movies.length,  
                    count:20  
                },  
                dataType:'jsonp',  
                success:function(data){  
                    mui('#Movies-scroll-box').pullRefresh().endPullupToRefresh(mediaData.movies.length>data.total)  
                    var data=JSON.parse(data)  
                    var moviesdata=ResData(data.subjects)  
                    //console.log(moviesdata)  
                    mediaData.movies=mediaData.movies.concat(moviesdata);  
                }  
            })    
        }