Auto-Cancellation Function will be triggered when a login ID has been forcefully logged out.
Moreover, login IDs will be forcefully logged out if there is no transaction, query nor polling during the monitoring period.
Please note that J-GATE sets the period of heartbeat monitoring from 60 to 120 seconds.
Therefore, in the case that the duration of disconnection is less than 1 second, auto-cancellation function will not be triggered because it will not applied to the condition above, and orders will not be invalidated since the login ID will not be forcefully logged out.