Tik Tok long-term display has been delivered.

The other party did not log in to Tik Tok, the message was intercepted or not viewed, and its own sending was delayed.

1. The other party has been not logged in, and cannot receive the message notification. Messages will always be displayed as delivered. Only when the other party logs in to Tik Tok can they see it and mark it as read.

2. Even if the other party logs in to Tik Tok, but the received message is intercepted due to setting privacy rights or other reasons, it will still be displayed as delivered rather than read until the user opens Tik Tok to view the message.

3. In the case of poor network conditions or high server load, the sent message will experience a certain degree of delay. In this case, it's not that the other party didn't receive the information you sent (that is, it wasn't "blocked"), but that the technical problem caused it to be unable to reach the recipient after it was sent.