subscriptionCompletionTimeout
When the session is disconnected or when an error occurs, subscription flows complete or throw an exception. This timeout defines how long the STOMP session will wait for subscribers to reach this completion/error before cancelling them along with internal coroutines.
Slow subscribers that take longer than this timeout may miss messages that were buffered before the completion or error, because they will instead get a CancellationException. The original error will be provided as cause of the cancellation in this case. They may miss previously buffered messages.