Tik Tok sent a second message without mutual concern. Why does he want to withdraw if he can't send it out?

The network is blocked. In the application of Tik Tok, we know that the second irrelevant short message sent by users on this application cannot be sent and withdrawn because of network congestion, and users only need to switch to a better network connection. This application is a short video social software of music creativity hatched by ByteDance.