You can upload it again. Methods: 1. Enter the official account of WeChat, Chinese folk music exam, click I am a candidate, and choose to upload the exam video.

2. Select "Take the exam".

3. Select OK.

4. Click Start Recording Scoring Video.

5. After the upload is successful, the picture will appear and the name of the first track will be written.

6. Record the video and name of the second track as above. After the two tracks are recorded and confirmed, click Submit.

7. After the upload is successful, refresh and return to the page for viewing.