Discovery Definition is missing OOB and making any changes to the CI manually and rerunning the discovery would not be able updated the CI.DescriptionServiceWatch Created Reconciliation Rule blocking CI Updates from ServiceNow Horizontal Discovery. Load Balancer Service [cmdb_ci_lb_service] Data Source: ServiceWatch --> Attributes [ip_address,port]Data Source: ServiceNow --> Attributes [] Cloud Load Balancer [cmdb_ci_cloud_load_balancer] Data Source: ServiceWatch --> Attributes [] With the "cmdb_ci_cloud_load_balancer", the reconciliation rule with "ServiceWatch" is the authorized data source for all fields. If both Discovery and Service Mapping configured/runs and Service Mapping was the last Discovery Source on a "cmdb_ci_cloud_load_balancer" CI, Discovery can no longer update that CI with any new information.E.g. One scenario would be Discovery has detected the state of the CI is now 'Terminated' but because of this reconciliation rule, it cannot update the CI. For the one on "cmdb_ci_lb_service" where "ServiceWatch" is the authorized data source for the IP Address and Port fields. If Discovery picked up that these values have changed, it can't update it. Steps to Reproduce Run Discovery on a Windows or Linux CI which has mysql instance is hosted.Once discovery is successful update a CI field values manually (example: "os" "Windows 10")Rerun the discovery and we do not see the value is changed back from what we get from Discovery.WorkaroundThis issue has been fixed. If you are able to upgrade, review the Fixed In or Intended Fix Version fields to determine whether any versions have a planned or permanent fix. If you are unable to upgrade to a fixed release, perhaps the following workaround may provide temporary relief. De-activate the reconciliation definition for Data Source "ServiceWatch" on the required classes from the "cmdb_reconciliation_definition" table.Related Problem: PRB1394069