If a favorite connection has been set with the Replica Set Name setting in the More Options page, even though the Replica Set Name value is removed, the parameter `replicaSet=` will still display in the connection string.

Additionally, removing the parameter `replicaSet=` from the connection string and click save changes will only affect the immediate connection. If we click on the other favorite connections and click back to this problematic connection or restart MongoDB Compass, the parameter `replicaSet=` will still display in the connection string and cause the failed connection with the error message Incomplete key value pair for option.

Please note we have reviewed that there is no whitespace in the Replica Set Name setting.