fabric listen chaincode event

[likhita-8091]

Hello, my program connects to the fabric network through fabric-sdk-go, executes the chain code OK, and listens to the chain code event OK; but when I down the fabric network and re-create a new fabric network, the program I wrote calls the chain The code is still OK, but the event published by the chain code can no longer be monitored. Why is this happening? Is it the way it is? I observed that the log is also reconnecting, but the event is not monitored. Logically, grpc communication is used at both ends. This problem should not arise. I hope to answer it.