hi @Arun Manocha​ I understand that option A could be time-consuming. But it would have helped us understand the issue's real cause. You have resolved the issue by deleting the pool and recreating a new one. But are you sure the two instances showing as running on the pools were deleted? If it's a bug on UI to show instance as running, then option B is fine. But if two instances were actually running then it might add to the billing. So it would be worth checking the cause of this issue.