1. Network connection problem: Please ensure that your device is connected to the Internet normally to ensure that data can be transmitted and synchronized correctly.
2. Software update problem: Check whether your Youdao translation pen and Netease cloud music application are the latest versions. Sometimes, updates may contain patches that fix synchronization problems.
3. Login problem: Make sure to use the same account to log in to Youdao Translation Pen and Netease Cloud Music Application to ensure that the data can be synchronized correctly.
4. Cache problem: Try to clear the cache of Youdao translation pen and Netease cloud music application. This will delete temporary files and data that may cause synchronization problems.
5. Device Settings: Please check the settings of Youdao Translation Pen and Netease Cloud Music Application to ensure that the synchronization option is enabled and the correct synchronization range is selected.
If you have tried the above methods, but the problem still exists, you can contact the customer service team of Youdao Translation Pen or Netease Cloud Music for more detailed help and guidance.