-
One fix is client destruction happening on the correct thread (when kicking another one off with existing client ID). This caused deadlocks on the subscriptions lock during a race condition when doKeepAliveCheck() also ran. A related deadlock was that the queued functions were executed while holding the lock taskQueueMutex. Together with the subscriptions lock, that was executed in the $SYS topic function, this also caused deadlocks.
