使用TXVideoEditer 添加水印后导出视频卡在99%？没有成功失败回调？

- (void) generateVideo:(TXVideoCompressed)videoCompressed videoOutputPath:(NSString *)videoOutputPath;

NSURL*url=  [NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource:@"1621582392155992" ofType:@"mp4"]];
    
    [_ugcEdit setVideoPath:url.path];
    [_ugcEdit setVideoBitrate:2000000];

   // 配置代理
         // 设置生成事件的回调委托对象，可以获取生成进度与结果
//    _fileName = @"1621582392155992.mp4";
   // 2. 对视频进行处理，这里以添加水印为例
    UIImage *image = [UIImage imageNamed:@"watermark"];
    [_ugcEdit setWaterMark:image normalizationFrame:CGRectMake(0, 0, 0.3 , 0.3 * image.size.height / image.size.width)];

    //拿到cache文件夹的路径
    NSString *cache=[NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES)lastObject];
    cache = [cache stringByAppendingPathComponent:@"WaterMark.mp4"];
    _savePath = cache;
    [_ugcEdit generateVideo:VIDEO_COMPRESSED_720P videoOutputPath:cache];