1, network connection problem: the network connection is unstable or the network speed is too slow, which will cause the video not to be played or stuck. You can try to connect to another network or check whether the network speed is normal.
2. Unsupported video format: Your device does not support this video format, so it cannot be played normally. You can try playing it on other devices or converting the video to a supported format.
3. Copyright issues: The video involves copyright issues and will be deleted or cannot be played. You can try to find other channels to watch or choose other videos.