If you can't reply to a comment in Netease Cloud Music, you may be prompted that you have successfully published it, but there are still no comments. This may be caused by the following reasons: 1. The comment has been occupied by another user: If the comment has been published by another user, the system will show "successfully published" but in fact, the comment has been occupied and other users cannot reply. 2. System Failure: The system of Netease Cloud Music may malfunction, resulting in the inability to reply to comments or post comments. 3. Insufficient comment authority: If the comment authority is insufficient, you cannot comment on other users 'comments. 4. Netease Cloud Music Version Upgrade: Sometimes, Netease Cloud Music Version Upgrade may cause some problems such as being unable to reply to comments or being unable to post comments. If none of the above situations occur, you can try to reopen Netease Cloud Music or try to open Netease Cloud Music on another browser to see if you can reply to the comments normally. If you still can't reply to the comments, you can try to contact the customer service of Netease Cloud Music for further help.