Aside from shutting down the core, is there any way to stop agent installation tasks that have been running (or active) for 4 or 5 hours? The odds are not good that the task will succeed if it hasn't completed by now. It usually takes under an hour to complete successfully. But the task is staying active for what seems to be an eternity (4.5 hours to be exact), on about 1/3 of the agents. Instead of waiting on the tasks to fail, which might take several days, is there a way to stop or fail the tasks immediately?