智能媒体服务这个timeline有什么问题吗？

智能媒体服务这个timeline有什么问题吗？{
"VideoTracks": [
{
"VideoTrackClips": [
{
"TimelineIn": 0.0,
"TimelineOut": "5",
"MediaURL": "https://saas.cdn.yunzongbu.cn/merchant/333425/202473/image/1719995241494555929.jpg",
"FontURL": "https://artai-study-video-record.oss-cn-beijing.aliyuncs.com/Font/刻石录钢笔鹤体.TTF",
"FontUrl": "https://artai-study-video-record.oss-cn-beijing.aliyuncs.com/Font/刻石录钢笔鹤体.TTF",
"ContentType": 3001000,
"Src": "https://artai-study-video-record.oss-cn-beijing.aliyuncs.com/record/artailive/66396889/786f93715750eeab6c9a947c3acd747decf3baf4a9f99-PfQYYj_fw1200.jpeg",
"Title": "786f93715750eeab6c9a947c3acd747decf3baf4a9f99-PfQYYj_fw1200.jpeg",
"index": 0,
"Duration": 5,
"Effects": [
{
"Order": 1,
"Type": "VFX",
"SubType": "movie",
"ExtParams": "effect=movie,circle_flag=0,duration=2"
},
{
"Radius": "0.15",
"Type": "Background",
"SubType": "Blur"
}
],
"Font": "刻石录钢笔鹤体",
"Type": "Image",
"HasAnimation": true,
"MediaId": null,
"X": 0,
"Y": 0,
"Height": 1,

                    "KeepResizeRatio": false,
                    "Width": 1,
                    "AdaptMode": "Contain",
                    "TrackId": 3001000,
                    "EffectPriority": [
                        "filter",
                        "vfx"
                    ]
                }
            ],
            "AspectRatio": "9:16",
            "Type": "Video",
            "HasAnimation": true,
            "ContentType": 3001000,
            "Visible": true,
            "Id": 3001000,
            "Count": 1
        },
        {
            "VideoTrackClips": [
                {
                    "TimelineIn": 0.0,
                    "TimelineOut": "5",
                    "FontURL": "https://artai-study-video-record.oss-cn-beijing.aliyuncs.com/Font/刻石录钢笔鹤体.TTF",
                    "FontUrl": "https://artai-study-video-record.oss-cn-beijing.aliyuncs.com/Font/刻石录钢笔鹤体.TTF",
                    "ContentType": null,
                    "Src": "https://artai-study-video-record.oss-cn-beijing.aliyuncs.com/record

预览的时候 时间展示这样