请具体描述问题出现的流程，并提供能复现问题的简单代码片段（https://developers.weixin.qq.com/miniprogram/dev/devtools/minicode.html）。

const mLoadWxVideo(src: string, x: number, repeat: boolean) {
  const mVideoWidth = 800;
  const mVideoHeight = 1334;
  const { screenHeight } = wx.getSystemInfoSync();
  const vVideoWidth = (mVideoWidth * screenHeight) / mVideoHeight;
  const vWxVideo = wx.createVideo({
    src,
    x,
    y: 0,
    width: vVideoWidth,
    height: screenHeight,
    autoplay: false,
    loop: repeat,
    controls: false,
    showCenterPlayBtn: false,
    enableProgressGesture: false,
    objectFit: 'cover',
    underGameView: true,
  });
  return vWxVideo;
} 

const PVideoCardFrame = [
  [4.04, 5.55],
  [9.04, 11.04],
  [16.01, 18.01],
  [21.21, 23.19],
  [27.07, 28.63],
  [34.02, 35.6],
  [41.05, 43.05],
  [48.18, 50.18],
];
const mVideoWidth = 800;
const mVideoHeight = 1334;
const { screenWidth, screenHeight } = wx.getSystemInfoSync();
const vVideoWidth = (mVideoWidth * screenHeight) / mVideoHeight;
const vVideoOffsetX = (vVideoWidth - screenWidth) / 2;
const vVideo = this.mLoadWxVideo(`https://acsp-static.sit.sf-express.com/sfoss/annual-report/videos/normal.mp4`, -vVideoOffsetX, false);
let vTimer = false;
// 监听视频播放事件
vVideo.onPlay(() => {
  // console.log(`第${this._mPageIndex + 1}个非循环视频开始播放`);
  console.log('onPlay。。。。');
  if (!vTimer) {
    vTimer = true;
    this.mScriptLoading.MAddProgress();
  }
});


// 监听视频播放到末尾事件
vVideo.onProgress((res) => {
  if (res.buffered > 5) {
    vVideo.play();
  }
});
vVideo.onTimeUpdate((res) => {
    if (res.position >= PVideoCardFrame[this.mPageIndex][1]) {
      const vTimer = res.position - PVideoCardFrame[this.mPageIndex][1];
      vVideo.pause();
      vVideo.seek(PVideoCardFrame[this.mPageIndex][0] + vTimer).then(res => {
        vVideo.play();
      });
    }
  });