Go to the sixth hospital to see the problem, discover the message, it can be released. Later, change the message server to another machine, normal. After the comparison is discovered, there is a problem with the number of resends. It is a problem with it. It may be a bug, or it may be caused by the unstable network, and it has to be checked.
CJH is specifically assigned to everyone's task, and I started a lot of things for this time.