1. Can you please tell me which SDK and version you are using?.
2. if your connection breaks occasionally,Please tell me the exact scenario
3. If you are developing turn based game and using SendMove to send the data then you can using getMoveHistory api to get the previous moves data
4. In simple games the recommended way is when a user get disconnected and connection resiliency feature is enabled,other users will get the onUserPaused event,so pause other users too for that time so they can not send anything