Cannibals' Hold unlimited mob spawns after event finishes

Hey, did a cellar in the Dry Steppes called Cannibals’ Hold, after finishing the event, in which you need to defend 3 prisoners, the mobs kept on spawning with no end in sight. Figured it was a bug, so just letting you guys know that a fix is prob in need.

Find an in-game bug? Help us squash it by reporting it here - Technical Support - Diablo IV Forums (blizzard.com)