If you encounter an error message such as "Debugger detected" when using Netease Cloud Music, and the program suddenly flashes back, it may be because Netease Cloud Music detected that there are some third-party debugging tools or software in your device, which led to the abnormal exit of the program.

In order to solve this problem, you can try the following methods:

1. Close other software or tools that may cause conflicts, such as some antivirus software, virtual machine software, debugger, etc.

2. Find the "Uninstall.exe" file in the installation directory of Netease Cloud Music, run the file to uninstall it, and then download and install Netease Cloud Music again.

3. Clear the temporary files and cache in your computer to ensure the normal operation of the system.

if the above methods can't solve the problem, I suggest you contact the customer service staff of Netease Cloud Music or seek the help of other professionals to find a better solution.